@brad-figg: I ran the command you asked me to. I was able to
successfully launch vncserver and run apport-collect in that. I presume
the command failed since it showed a backtrace in python and a long html
output. dpkg also warned me that package 'linux' was not found. I'm
attaching the full logs containing the output of apport-collect 1603564

** Attachment added: "Output of apport-collect 1603564"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1603564/+attachment/4704146/+files/dump.txt

-- 
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/1603564

Title:
  USB unplug crashes system - Assuming host is dying, halting host

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Occasionally, when I unplug my Android phone (connected over USB), my machine 
crashes.
  At first, I presumed the entire machine had halted since the keyboard and 
mouse stopped working.
  However, I'm still able to SSH in although the screen is completely 
non-responsive. Pressing the power button on the CPU seems to bring up a window 
with Ubuntu's power options.

  My Ubuntu version:
  No LSB modules are available.
  Distributor ID:       Ubuntu
  Description:  Ubuntu 14.04.4 LTS
  Release:      14.04
  Codename:     trusty

  Kernel version:
  Linux nixentor 3.13.0-91-generic #138-Ubuntu SMP Fri Jun 24 17:00:34 UTC 2016 
x86_64 x86_64 x86_64 GNU/Linux

  I see the following output on dmesg:
  [15563.650717] ------------[ cut here ]------------
  [15563.650730] WARNING: CPU: 7 PID: 0 at 
/build/linux-3r7mVb/linux-3.13.0/drivers/usb/host/xhci-ring.c:1590 
handle_cmd_completion+0xe56/0xe60()
  [15563.650732] Modules linked in: qcserial usb_wwan usbserial ip6table_filter 
ip6_tables iptable_filter ip_tables x_tables cachefiles cfg80211 rfcomm bnep 
nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache snd_hda_codec_hdmi btusb 
bluetooth usb_storage mxm_wmi x86_pkg_temp_thermal intel_powerclamp coretemp 
kvm_intel kvm crct10dif_pclmul crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul 
glue_helper ablk_helper cryptd uvcvideo videobuf2_vmalloc videobuf2_memops 
joydev videobuf2_core snd_hda_codec_realtek videodev snd_usb_audio 
snd_usbmidi_lib 8812au(OX) snd_seq_midi snd_seq_midi_event snd_rawmidi 
snd_hda_intel snd_hda_codec snd_seq serio_raw snd_hwdep radeon snd_pcm mei_me 
snd_page_alloc mei snd_seq_device snd_timer snd ttm drm_kms_helper soundcore 
drm parport_pc i2c_algo_bit ppdev lp wmi parport video intel_smartconnect 
shpchp acpi_pad mac_hid hid_generic usbhid hid e1000e ahci psmouse ptp libahci 
pps_core
  [15563.650804] CPU: 7 PID: 0 Comm: swapper/7 Tainted: G           OX 
3.13.0-91-generic #138-Ubuntu
  [15563.650807] Hardware name: To Be Filled By O.E.M. To Be Filled By 
O.E.M./Z97 Extreme4, BIOS P1.30 05/23/2014
  [15563.650809]  0000000000000000 ffff88041edc3d90 ffffffff81729906 
0000000000000000
  [15563.650813]  0000000000000009 ffff88041edc3dc8 ffffffff8106987d 
ffff880404062d60
  [15563.650817]  ffff8804040606b0 0000000000000010 00000004040606b0 
ffff8804041a0000
  [15563.650822] Call Trace:
  [15563.650824]  <IRQ>  [<ffffffff81729906>] dump_stack+0x64/0x82
  [15563.650836]  [<ffffffff8106987d>] warn_slowpath_common+0x7d/0xa0
  [15563.650840]  [<ffffffff8106995a>] warn_slowpath_null+0x1a/0x20
  [15563.650845]  [<ffffffff815848c6>] handle_cmd_completion+0xe56/0xe60
  [15563.650852]  [<ffffffff8109aa65>] ? check_preempt_curr+0x75/0xa0
  [15563.650857]  [<ffffffff815861eb>] xhci_irq+0x33b/0xa50
  [15563.650861]  [<ffffffff8109fe35>] ? sched_clock_cpu+0xb5/0x100
  [15563.650865]  [<ffffffff81586911>] xhci_msi_irq+0x11/0x20
  [15563.650870]  [<ffffffff810c27be>] handle_irq_event_percpu+0x4e/0x220
  [15563.650874]  [<ffffffff810c29cd>] handle_irq_event+0x3d/0x60
  [15563.650878]  [<ffffffff810c5497>] handle_edge_irq+0x77/0x130
  [15563.650886]  [<ffffffff81016e3e>] handle_irq+0x1e/0x30
  [15563.650893]  [<ffffffff8173c79d>] do_IRQ+0x4d/0xc0
  [15563.650898]  [<ffffffff81731e2d>] common_interrupt+0x6d/0x6d
  [15563.650900]  <EOI>  [<ffffffff815daaf2>] ? cpuidle_enter_state+0x52/0xc0
  [15563.650910]  [<ffffffff815daae8>] ? cpuidle_enter_state+0x48/0xc0
  [15563.650915]  [<ffffffff815dac3c>] cpuidle_idle_call+0xdc/0x220
  [15563.650921]  [<ffffffff8101e3fe>] arch_cpu_idle+0xe/0x30
  [15563.650924]  [<ffffffff810c1be1>] cpu_startup_entry+0xc1/0x2b0
  [15563.650931]  [<ffffffff8104278d>] start_secondary+0x21d/0x2d0
  [15563.650934] ---[ end trace d9b5447d0ddb440a ]---
  [15565.486066] xhci_hcd 0000:00:14.0: xHCI host not responding to stop 
endpoint command.
  [15565.486075] xhci_hcd 0000:00:14.0: Assuming host is dying, halting host.
  [15565.486120] xhci_hcd 0000:00:14.0: HC died; cleaning up
  [15568.853140] xhci_hcd 0000:00:14.0: Timeout while waiting for address 
device command
  [15568.853149] xhci_hcd 0000:00:14.0: Abort the command ring, but the xHCI is 
dead.
  [15569.057055] usb 3-14: device not accepting address 92, error -108
  [15574.055575] xhci_hcd 0000:00:14.0: Timeout while waiting for a slot
  [15574.055587] xhci_hcd 0000:00:14.0: Abort the command ring, but the xHCI is 
dead.
  [15579.054167] xhci_hcd 0000:00:14.0: Timeout while waiting for a slot
  [15579.054176] xhci_hcd 0000:00:14.0: Abort the command ring, but the xHCI is 
dead.
  [15584.052706] xhci_hcd 0000:00:14.0: Timeout while waiting for a slot
  [15584.052715] xhci_hcd 0000:00:14.0: Abort the command ring, but the xHCI is 
dead.
  [15584.052841] usb 3-3: USB disconnect, device number 2
  [15584.052854] usb 3-3.2: USB disconnect, device number 13
  [15584.085404] usb 3-4: USB disconnect, device number 3
  [15584.108793] usb 3-6: USB disconnect, device number 8
  [15584.164694] usb 3-7: USB disconnect, device number 9
  [15584.165426] usb 3-8: USB disconnect, device number 10
  [15584.165634] usb 3-9: USB disconnect, device number 11
  --- 
  ApportVersion: 2.14.1-0ubuntu3.21
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  guru       2492 F.... pulseaudio
   /dev/snd/controlC0:  guru       2492 F.... pulseaudio
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=bebe3ee7-4a81-4980-93ee-80daafd63772
  InstallationDate: Installed on 2014-05-04 (808 days ago)
  InstallationMedia: This
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  Package: linux (not installed)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-92-generic 
root=UUID=2e88994f-d021-4c26-a209-6b1a3aece4fc ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-92.139-generic 3.13.11-ckt39
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-92-generic N/A
   linux-backports-modules-3.13.0-92-generic  N/A
   linux-firmware                             1.127.22
  RfKill:
   1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
  Tags:  trusty
  Uname: Linux 3.13.0-92-generic x86_64
  UpgradeStatus: Upgraded to trusty on 2014-08-24 (696 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 05/23/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P1.30
  dmi.board.name: Z97 Extreme4
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP1.30:bd05/23/2014:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ97Extreme4:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1603564/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to     : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to