[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Yorwos81]

this just hapenned to me to guest os in virtualbox after cloning ,  ubuntu host 
, kali linux guest 
kernel in uname -a says 
guest 3.18.0-kali3-amd64 #1 SMP Debian 3.18.6-1~kali2

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Trusty:
  Fix Released

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me
  drm mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video 
coretemp lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  J

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Yorwos81]

after shutdown though it didnt repeat itself it booted normally

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Trusty:
  Fix Released

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me
  drm mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video 
coretemp lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 14:27:05 ubuntu-d

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[perfran]

*** This bug is a duplicate of bug 1275116 ***
https://bugs.launchpad.net/bugs/1275116

Hi,
I still have this soft lockup bug with kernel 3.13.0-17 (no matter if it's the 
lowlatency flavour or not, hence not a duplicate of bug #1275116, which seems 
resolved now).
Joel and Alin, do you still have this bug?
However in my case, this threadirqs is not present in my /etc/default/grub, so 
that might not be the same bug.
Another clue: I run a dual graphics hardware (sony vaio Z12 laptop, 
nvidia+intel). The bug does not occur when I set the BIOS to "static" in order 
to force the nvidia card to run. So it might be related to the intel graphics 
driver.

Should I open a new bug, or is there any known fix or workaround?

Thanks!

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0x

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[perfran]

** This bug is no longer a duplicate of bug 1275116
   lowlatency-flavour crashes and locks up alot

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joel]

How can I test if this still affects me?

I don't currently have Ubuntu installed on the machine, but I can
install it or run something from USB (probably easiest as the installer
runs ubuntu and also has this bug). I guess I have to have select an
experimental kernel somehow?

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[David Cohen]

I've got this same issue on Intel Merrifield based device. I managed to 
workaround with the attached hackish patch.
I commented on lkml here:
http://www.spinics.net/lists/kernel/msg1716965.html

** Patch added: 
"0001-x86-sched-HACK-crazy-workaround-to-avoid-scheduler-r.patch"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1269404/+attachment/4064146/+files/0001-x86-sched-HACK-crazy-workaround-to-avoid-scheduler-r.patch

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop k

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Ubuntu Foundations Team Bug Bot]

** Tags added: patch

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136728]  [] 
set_memory_

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

Can folks affected by this bug see if the issue still exists with the
latest Trusty kernel and updates?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[perfran]

It does not occur anymore for me (kernel 3.13.0-21). I couldn't get from
which update the issue disappeared but now everything's fine. Thanks !

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[David Cohen]

What was the last known kernel affected by this bug? I would like to
bisect it and find what patch fixed it.

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

** Changed in: linux (Ubuntu Trusty)
   Status: Confirmed => Fix Released

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Trusty:
  Fix Released

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

Thanks for the update.

I built the next test kernel, up to the following commit:
f9efbce6334844c7f8b9b9459f6d7a6fbc2928e0

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1269404

Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on your test results.

Thanks in advance

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:2

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

Unfortunately the bug still occurs with the kernel from your latest
comment.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 14:27:0

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

I built the next test kernel, up to the following commit:
0b1e73ed225d8f7aeef96b74147215ca8b990dce

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1269404

Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on your test results.

Thanks in advance

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kern

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

Unfortunately the laptop froze with this kernel too, so the bug still
occurs.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 14:27:

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

Thanks for testing.  During the bisect, we will have some kernels that
have the bug and some that don't, which is to be expected.  Eventually,
we will narrow down to which commit introduced the bug.

I'll update the bisect and build the next kernel.  I'll post a link
shortly.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

I built the next test kernel, up to the following commit:
2cb85c0845e5826b789d755c97e13e8d5dc85368

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1269404

Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on your test results.

Thanks in advance

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kern

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

This kernel worked, the bug didn't occur.

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

Well, I spoke too soon.

With this kernel, the laptop doesn't freeze on boot. But the laptop
freezes when I click the restart button under Unity, it happened every
time. It doesn't occur with the "sudo reboot" command though.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

I investigated further and something is really messed up with this last
kernel. Every time I switch to a tty, the laptop freezes and the tty
displays a huge list of error messages. And this happens even without
"threadirqs". I'm attaching photos  of the errors.

** Attachment added: "pictures - kernel commit 
2cb85c0845e5826b789d755c97e13e8d5dc85368"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1269404/+attachment/3971627/+files/error-commit-2cb85c0845e5826b789d755c97e13e8d5dc85368.tar.gz

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

I forgot something: those errors occur when switching to a tty AFTER
logging in to Unity. If I get to the login screen and then I switch to a
tty, the laptop doesn't freeze when switching to the tty and no errors
are displayed in the tty. Maybe that's somehow relevant.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:2

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

Is it the same bug when the laptop freezes in comment #28?  Do you see
the "BUG: soft lockup" message?

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

No, I didn't see any "soft lockup" messages.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

I built the next test kernel, up to the following commit:
1071ec7bc2dabd0a9d12a1ae5570f4fd3ba944ca

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1269404

Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on your test results.

Thanks in advance

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kern

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

The bug still occurs, this one freezes too.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.1

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

I built the next test kernel, up to the following commit:
5328f35b1584a9849ffe46afa42018946aa43851

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1269404

Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on your test results.

Thanks in advance

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kern

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

Like the others, this one freezes too when using "threadirqs". So the
bug still occurs.

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Jaime Pérez]

*** This bug is a duplicate of bug 1275116 ***
https://bugs.launchpad.net/bugs/1275116

** This bug has been marked a duplicate of bug 1275116
   lowlatency-flavour crashes and locks up alot

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0x

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joel]

*** This bug is a duplicate of bug 1275116 ***
https://bugs.launchpad.net/bugs/1275116

I get this too. I thought the error messages were just random (my
suspicion was multithreading and IRQs going wild after peeking into the
kernel source), but I recognize them here! And, I don\t recognize it on
#1275116 so maybe that is not a duplicate of this bug?

Running on 13.10 usb/persistent/installer.
Kernel: Linux ubuntu 3.11.0-12-generic #19-Ubuntu SMP Wed Oct 9 16:20:46 UTC 
2013 x86_64 x86_64 x86_64 GNU/Linux

Note that I don\t have a hard crash. While I get errors on bootup and
the installer warns me that\s somethings\s wrong, I can still use the
OS. For example, I\m writing this from Firefox on the affected machine
and things work smoothly.


** Attachment added: "dmesg"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1269404/+attachment/3988969/+files/dmesg

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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joel]

*** This bug is a duplicate of bug 1275116 ***
https://bugs.launchpad.net/bugs/1275116


** Attachment added: "lshw"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1269404/+attachment/3988979/+files/lshw

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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
chan

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

** Changed in: linux (Ubuntu)
   Status: Confirmed => Incomplete

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136728]  [] 
set_memory_x+0x43/

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

I'd like to perform a bisect to figure out what commit caused this
regression. We need to identify the earliest kernel where the issue
started happening as well as the latest kernel that did not have this
issue.

Can you test the following kernels and report back? We are looking for
the first kernel version that exhibits this bug:

v3.12 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-trusty/
If v3.12 final does not exhibit the bug, we should move on to testing some of 
the v3.13 release candidates.

v3.13-rc3: http://kernel.ubuntu.com/~kernel-
ppa/mainline/v3.13-rc3-trusty/

If v3.13-rc3 does not exhibit the bug then test v3.13-rc6:
v3.13-rc6: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc6-trusty/

If v3.13-rc3 does exhibit the bug then test v3.13-rc2:
v3.13-rc2: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc2-trusty

You don't have to test every kernel, just up until the kernel that first
has this bug.

Thanks in advance!

** Changed in: linux (Ubuntu)
   Importance: Undecided => High

** Tags added: performing-bisect

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 1

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

Also, can you follow the "Boot options" instructions on the following
wiki to enable additional output on boot:

https://wiki.ubuntu.com/DebuggingKernelBoot

As mentioned on the wiki, it would be great if you can attach a log file
which may have captured any messages you see. If you are unable to
capture a log file, a digital photo will work just as well. As a last
resort you can even copy messages down by hand.


** Also affects: linux (Ubuntu Trusty)
   Importance: High
   Status: Incomplete

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Trusty:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

Hello,

The last working kernel was 3.12.0-8-generic and the first for which the
bug started was 3.13.0-1-generic. I'll also try what you said and post
the results.

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Trusty:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 u

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

I've tried the kernels you mentioned and:

- v3.12 final worked
- v3.13-rc3 didn't work

The problem is that the bug behavior changed after a couple of reboots.
I was trying to take a photo of the error messages but I couldn't get a
clear photo and after a few reboots, the error wasn't displayed anymore
and the laptop booted until the login screen (LightDM), then it freezes.
Once I was able to log in to the Unity desktop and only then the laptop
froze.

So basically now the laptop freezes when the login screen shows up when
using  v3.13-rc3 as well as when using the initial kernels that caused
issues (3.13.0-1-generic, 3.13.0-2-generic and 3.13.0-3-generic).

Unfortunately, that means I couldn't take a photo of the old error but
I'm attaching the syslog, maybe you can find something helpful there.
Let me know how else I can help...

** Attachment added: "syslog"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1269404/+attachment/394/+files/syslog

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Trusty:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel:

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

Can you give v3.13-rc2 a try:
v3.13-rc2: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc2-trusty

If 3.13-rc2 also has the bug, can  you test v3.13-rc1 to see if it also has the 
bug?  
v3.13-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc1-trusty

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Trusty:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

** Attachment added: "error photo 2"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1269404/+attachment/3950837/+files/2014-01-17%2013.25.59.jpg

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Trusty:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desk

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

** Attachment added: "error photo 1"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1269404/+attachment/3950836/+files/2014-01-17%2013.23.05.jpg

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Trusty:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desk

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

Both v3.13-rc2 and v3.13-rc1 didn't work. This time I was able to make
photos of the errors. I've attached 2 photos to the bug report...

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Trusty:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

Thanks for testing.  It sounds like the bug was introduced in 3.13-rc1.
I'll start a bisect between v3.12 final and v3.13-rc1.

The v3.13-rc8 kernel is now out.  Can you also give that kernel a test
to see if it still contains the bug:

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc8-trusty/

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Trusty:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

Thanks!

Unfortunately v3.13-rc8 doesn't work either...

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Trusty:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 14:27:05 ubuntu-desktop ke

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

I found out what was causing it: starting with v3.13-rc1, having
"threadirqs" under "GRUB_CMDLINE_LINUX_DEFAULT" in the /etc/default/grub
configuration file causes the behaviour I mentioned above.

After removing "threadirqs" from /etc/default/grub, the bug doesn't
occur any more. I guess this is still a bug in the kernel, right?
Because Linux 3.12.0-8 from the Ubuntu repositories works with
"threadirqs"...

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Trusty:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719] 

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

Could be a similar issue reported upstream:
https://lkml.org/lkml/2013/12/31/144

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Trusty:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 1

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

I started a kernel bisect between v3.12 final and v3.13-rc1. The kernel
bisect will require testing of about 10 - 12 test kernels.

I built the first test kernel, up to the following commit:
5cbb3d216e2041700231bcfc383ee5f8b7fc8b74

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1269404

Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on your test results.

Thanks in advance

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” source package in Trusty:
  Incomplete

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x7

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

** Changed in: linux (Ubuntu Trusty)
   Status: Incomplete => Confirmed

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 14:27:05

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

The packages you provided do not install successfully. Here's the output
(I've tried a couple of time and the result was the same):

sudo dpkg -i *.deb
(Reading database ... 721241 files and directories currently installed.)
Preparing to unpack 
linux-headers-3.12.0-031200-generic_3.12.0-031200.201401211605_amd64.deb ...
Unpacking linux-headers-3.12.0-031200-generic (3.12.0-031200.201401211605) over 
(3.12.0-031200.201401211605) ...
Preparing to unpack 
linux-image-3.12.0-031200-generic_3.12.0-031200.201401211605_amd64.deb ...
Examining /etc/kernel/preinst.d/
run-parts: executing /etc/kernel/preinst.d/intel-microcode 
3.12.0-031200-generic /boot/vmlinuz-3.12.0-031200-generic
Done.
Unpacking linux-image-3.12.0-031200-generic (3.12.0-031200.201401211605) over 
(3.12.0-031200.201401211605) ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.12.0-031200-generic 
/boot/vmlinuz-3.12.0-031200-generic
run-parts: executing /etc/kernel/postrm.d/zz-extlinux 3.12.0-031200-generic 
/boot/vmlinuz-3.12.0-031200-generic
P: Checking for EXTLINUX directory... found.
P: Writing config for /boot/vmlinuz-3.13.0-5-generic...
P: Writing config for /boot/vmlinuz-3.13.0-4-generic...
P: Writing config for /boot/vmlinuz-3.12.0-8-generic...
P: Writing config for /boot/vmlinuz-3.12.0-031200-generic...
P: Installing debian theme... done.
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.12.0-031200-generic 
/boot/vmlinuz-3.12.0-031200-generic
dpkg: dependency problems prevent configuration of 
linux-headers-3.12.0-031200-generic:
 linux-headers-3.12.0-031200-generic depends on linux-headers-3.12.0-031200; 
however:
  Package linux-headers-3.12.0-031200 is not installed.

dpkg: error processing package linux-headers-3.12.0-031200-generic (--install):
 dependency problems - leaving unconfigured
Setting up linux-image-3.12.0-031200-generic (3.12.0-031200.201401211605) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Not updating initrd symbolic links since we are being updated/reinstalled 
(3.12.0-031200.201401211605 was configured last, according to dpkg)
Not updating image symbolic links since we are being updated/reinstalled 
(3.12.0-031200.201401211605 was configured last, according to dpkg)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 
3.12.0-031200-generic /boot/vmlinuz-3.12.0-031200-generic
run-parts: executing /etc/kernel/postinst.d/dkms 3.12.0-031200-generic 
/boot/vmlinuz-3.12.0-031200-generic
Error! Could not locate dkms.conf file.
File:  does not exist.
ERROR (dkms apport): kernel package linux-headers-3.12.0-031200-generic is not 
supported
Error! Bad return status for module build on kernel: 3.12.0-031200-generic 
(x86_64)
Consult /var/lib/dkms/bbswitch/0.8/build/make.log for more information.
ERROR (dkms apport): kernel package linux-headers-3.12.0-031200-generic is not 
supported
Error! Bad return status for module build on kernel: 3.12.0-031200-generic 
(x86_64)
Consult /var/lib/dkms/nvidia-331/331.38/build/make.log for more information.
ERROR (dkms apport): kernel package linux-headers-3.12.0-031200-generic is not 
supported
Error! Bad return status for module build on kernel: 3.12.0-031200-generic 
(x86_64)
Consult /var/lib/dkms/v4l2loopback/0.8.0/build/make.log for more information.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 
3.12.0-031200-generic /boot/vmlinuz-3.12.0-031200-generic
update-initramfs: Generating /boot/initrd.img-3.12.0-031200-generic
/usr/share/initramfs-tools/hooks/intel_microcode: 136: 
/usr/share/initramfs-tools/hooks/intel_microcode: prepend_earlyinitramfs: not 
found
E: intel-microcode: failed to prepend early firmware to initramfs
W: intel-microcode: will try to use late initramfs update mode...
run-parts: executing /etc/kernel/postinst.d/pm-utils 3.12.0-031200-generic 
/boot/vmlinuz-3.12.0-031200-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 
3.12.0-031200-generic /boot/vmlinuz-3.12.0-031200-generic
run-parts: executing /etc/kernel/postinst.d/zz-extlinux 3.12.0-031200-generic 
/boot/vmlinuz-3.12.0-031200-generic
P: Checking for EXTLINUX directory... found.
P: Writing config for /boot/vmlinuz-3.13.0-5-generic...
P: Writing config for /boot/vmlinuz-3.13.0-4-generic...
P: Writing config for /boot/vmlinuz-3.12.0-8-generic...
P: Writing config for /boot/vmlinuz-3.12.0-031200-generic...
P: Installing debian theme... done.
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 
3.12.0-031200-generic /boot/vmlinuz-3.12.0-031200-generic
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.13.0-5-generic
Found initrd image: /boot/initrd.img-3.13.0-5-generic
Found linux image: /boot/vmlinuz-3.13.0-4-generic
Found initrd image: /boot/initrd.img-3.13.0-4-generic
Found linux image: /boot/vmlinuz-3.12.0-031200-generic
Found initrd image: /boot/initrd.img-3.12.0-031200-generic
Found linux image: /boot/vmlinuz-3.12

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

Does the linux-image package install?  That is the only one you should
need to test.  No need to install the headers package.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] 

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

Yes, it was installed successfully. But unfortunately it doesn't work.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 14:27:05 ubun

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Joseph Salisbury]

By "Doesn't work" do you mean it exhibits the bug, or there is some
other issue?

During the bisect, there will be several kernels to test.  Some will
exhibit this bug and some will not.  I update the bisect with which
kernels have the bug and which do not, and eventually we will locate the
commit that introduced the regression.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[Alin Andrei]

Yes, I meant that the bug is still present with this kernel.

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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm 
mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp 
lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_call_chain+0x4c/0x70
  Jan 15 14:27:05 ubuntu-desktop

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[TK]

I'm currently experiencing this bug on a Dell PowerEdge R430 server,
clean install of 14.04.2 (kernel 3.16).

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Trusty:
  Fix Released

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me
  drm mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video 
coretemp lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  
7f192e8ca880() GS:88043e48() knlGS:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS:  ES: 
 CR0: 80050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 00f76068 
CR3: 36935000 CR4: 000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  88043e495368 
00015300  81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0101 
011b 81059da0 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  88043e5d08a8 
88043e5d0808 880036b4bbf0 810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [] ? 
flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [] 
on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [] 
flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [] 
__purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [] 
vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [] 
change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [] ? 
notifier_ca

[Kernel-packages] [Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

[David Cohen]

You can take a look at this kernel commit. It is the fix for kernel 3.14
stable tree and has the info about the fix applied to Linux master
branch too:

commit 4c03d4699182312ed42257834b915492af16022a
Author: Peter Zijlstra 
Date:   Wed Apr 9 16:24:47 2014 +0200

x86,preempt: Fix preemption for i386

Many people reported preemption/reschedule problems with i386 kernels
for .13 and .14. After Michele bisected this to a combination of

  3e8e42c69bb ("sched: Revert need_resched() to look at TIF_NEED_RESCHED")
  ded79754754 ("irq: Force hardirq exit's softirq processing on its own 
stack")

it finally dawned on me that i386's current_thread_info() was to
blame.

When we are on interrupt/exception stacks, we fail to observe the
right TIF_NEED_RESCHED bit and therefore the PREEMPT_NEED_RESCHED
folding malfunctions.

Current upstream fixes this by making i386 behave the same as x86_64
already did:

  2432e1364bbe ("x86: Nuke the supervisor_stack field in i386 thread_info")
  b807902a88c4 ("x86: Nuke GET_THREAD_INFO_WITH_ESP() macro for i386")
  0788aa6a23cb ("x86: Prepare removal of previous_esp from i386 thread_info 
structure")
  198d208df437 ("x86: Keep thread_info on thread stack in x86_32")

However, that is far too much to stuff into -stable. Therefore I
propose we merge the below patch which uses task_thread_info(current)
for tif_need_resched() instead of the ESP based current_thread_info().

This makes sure we always observe the one true TIF_NEED_RESCHED bit
and things will work as expected again.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Trusty:
  Fix Released

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - 
CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: 
parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi 
snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt 
nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp 
xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack 
ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 
nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec 
nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep 
x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm 
mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event 
snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi 
ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw 
gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me
  drm mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video 
coretemp lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: 
systemd-udevd Tainted: PF   W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell 
Inc.  Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: 880423d5e000 
ti: 880036b4a000 task.ti: 880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 
0010:[]  [] 
smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 
0018:880036b4bb78  EFLAGS: 0202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0006 
RBX: 880036b4bb28 RCX: 88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0006 
RSI: 0100 RDI: 
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: 880036b4bbc8 
R08: 88043e495348 R09: 0004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: 88043e495348 
R11: 29312e312e312820 R12: 81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: 880036b4bb40 
R14: 81ec810d R15: 81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136