*** This bug is a duplicate of bug 1674838 *** https://bugs.launchpad.net/bugs/1674838
This affects me as well on Ubuntu 17.04 (and with less frequency on Xubuntu 17.04) with symptoms similar to what others described above (the graphical desktop freezing requiring a hard reset). I have noticed an interesting pattern with this bug. I'm a Mozilla developer, and I build Firefox on my laptop regularly and I have noticed that this bug tends to happen a lot when I start a build on my laptop when I'm at home and am playing something from Youtube in the background (which I tend to do a lot!) In the beginning I suspected perhaps something in the Firefox media stack is involved due to the involvement of Youtube but now for a while I had switched to playing Youtube in Chrome and still the same happens. This time the bug was in fact triggered from Chrome, so that rules out my previous theory. Since this happens more when I'm at home, I suspect there is a connection to the wifi driver in my laptop somehow. I have a Qualcomm Atheros QCA6174 (DW1820) using the open source wifi-qca6174 -firmware-dw1820 driver. Here is the relevant parts of my syslog: May 14 16:31:15 ehsan-precision kernel: [17967.039294] ------------[ cut here ]------------ May 14 16:31:15 ehsan-precision kernel: [17967.039318] kernel BUG at /build/linux-2NWldV/linux-4.10.0/include/linux/swapops.h:129! May 14 16:31:15 ehsan-precision kernel: [17967.039338] invalid opcode: 0000 [#1] SMP May 14 16:31:15 ehsan-precision kernel: [17967.039350] Modules linked in: ccm arc4 rfcomm msr vmnet(OE) uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) cmac hid_multitouch btusb btrtl bnep binfmt_misc nls_iso8859_1 i2c_designware_platform i2c_designware_core snd_hda_codec_hdmi dell_wmi dell_led dell_smbios dcdbas dell_smm_hwmon snd_hda_codec_realtek intel_rapl snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm ath10k_pci ath10k_core aesni_intel aes_x86_64 crypto_simd ath snd_seq_midi glue_helper snd_seq_midi_event cryptd mac80211 snd_rawmidi input_leds joydev serio_raw snd_seq snd_seq_device snd_timer May 14 16:31:15 ehsan-precision kernel: [17967.039574] cfg80211 rtsx_pci_ms snd memstick soundcore idma64 virt_dma processor_thermal_device mei_me intel_soc_dts_iosf mei intel_lpss_pci shpchp intel_pch_thermal hci_uart btbcm btqca btintel bluetooth intel_lpss_acpi intel_lpss intel_hid dell_smo8800 int3403_thermal int340x_thermal_zone mac_hid tpm_crb int3400_thermal sparse_keymap acpi_thermal_rel acpi_als acpi_pad kfifo_buf industrialio parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs xor raid6_pq usbhid nouveau rtsx_pci_sdmmc i915 mxm_wmi ttm i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt psmouse fb_sys_fops nvme drm nvme_core ahci rtsx_pci libahci i2c_hid hid pinctrl_sunrisepoint wmi video pinctrl_intel fjes May 14 16:31:15 ehsan-precision kernel: [17967.039808] CPU: 6 PID: 3405 Comm: Web Content Tainted: G OE 4.10.0-20-generic #22-Ubuntu May 14 16:31:15 ehsan-precision kernel: [17967.039842] Hardware name: Dell Inc. Precision 5520/06X96V, BIOS 1.0.2 12/28/2016 May 14 16:31:15 ehsan-precision kernel: [17967.039870] task: ffff970d517b1700 task.stack: ffffbaf785d8c000 May 14 16:31:15 ehsan-precision kernel: [17967.039895] RIP: 0010:__migration_entry_wait+0x16a/0x180 May 14 16:31:15 ehsan-precision kernel: [17967.039915] RSP: 0000:ffffbaf785d8fd68 EFLAGS: 00010246 May 14 16:31:15 ehsan-precision kernel: [17967.039936] RAX: 0017ffffc0048078 RBX: fffff21a60574e30 RCX: fffff21a60574e30 May 14 16:31:15 ehsan-precision kernel: [17967.039962] RDX: 0000000000000001 RSI: ffff970d55d38800 RDI: fffff21a53b54000 May 14 16:31:15 ehsan-precision kernel: [17967.039989] RBP: ffffbaf785d8fd80 R08: ffff970d9513c5c0 R09: ffff970d9513c5c0 May 14 16:31:15 ehsan-precision kernel: [17967.040020] R10: 00000000ffffffff R11: 0000000000000001 R12: fffff21a53b54000 May 14 16:31:15 ehsan-precision kernel: [17967.040046] R13: 3e000000004ed500 R14: ffffbaf785d8fe30 R15: ffff970c453e8000 May 14 16:31:15 ehsan-precision kernel: [17967.040073] FS: 00007effa9aeaec0(0000) GS:ffff970dbf580000(0000) knlGS:0000000000000000 May 14 16:31:15 ehsan-precision kernel: [17967.040102] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 14 16:31:15 ehsan-precision kernel: [17967.040124] CR2: 00007eff66d006b0 CR3: 0000000806a9a000 CR4: 00000000003406e0 May 14 16:31:15 ehsan-precision kernel: [17967.040150] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 May 14 16:31:15 ehsan-precision kernel: [17967.040176] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 May 14 16:31:15 ehsan-precision kernel: [17967.040203] Call Trace: May 14 16:31:15 ehsan-precision kernel: [17967.040218] migration_entry_wait+0x74/0x80 May 14 16:31:15 ehsan-precision kernel: [17967.040236] do_swap_page+0x5b3/0x770 May 14 16:31:15 ehsan-precision kernel: [17967.040251] handle_mm_fault+0x873/0x1360 May 14 16:31:15 ehsan-precision kernel: [17967.040269] __do_page_fault+0x23e/0x4e0 May 14 16:31:15 ehsan-precision kernel: [17967.040285] do_page_fault+0x22/0x30 May 14 16:31:15 ehsan-precision kernel: [17967.040301] page_fault+0x28/0x30 May 14 16:31:15 ehsan-precision kernel: [17967.040315] RIP: 0033:0x417c2b May 14 16:31:15 ehsan-precision kernel: [17967.040327] RSP: 002b:00007ffccd383e10 EFLAGS: 00010246 May 14 16:31:15 ehsan-precision kernel: [17967.040347] RAX: 0000000000000001 RBX: 00007eff66d006b0 RCX: 0000000000000001 May 14 16:31:15 ehsan-precision kernel: [17967.040374] RDX: 00007eff63700001 RSI: 00007eff63700530 RDI: 00007effa8300298 May 14 16:31:15 ehsan-precision kernel: [17967.040400] RBP: 00007ffccd383e50 R08: 00000000ffffffff R09: 00007eff6345c000 May 14 16:31:15 ehsan-precision kernel: [17967.040427] R10: 00000000ffffffff R11: 0000000000000001 R12: 0000000000000030 May 14 16:31:15 ehsan-precision kernel: [17967.040453] R13: 00007effa8300040 R14: 00007effa8300288 R15: 00007effa8300048 May 14 16:31:15 ehsan-precision kernel: [17967.040479] Code: ff ff ff 4c 89 e7 e8 96 a2 f8 ff e9 3c ff ff ff 85 d2 0f 84 2a ff ff ff 8d 4a 01 89 d0 f0 41 0f b1 4d 00 39 d0 74 81 89 c2 eb e5 <0f> 0b 4c 89 e7 e8 0c fb f9 ff eb b8 4c 8d 60 ff 4c 8d 68 1b eb May 14 16:31:15 ehsan-precision kernel: [17967.040566] RIP: __migration_entry_wait+0x16a/0x180 RSP: ffffbaf785d8fd68 May 14 16:31:15 ehsan-precision kernel: [17967.073361] ---[ end trace ce24be92311da3e6 ]--- May 14 16:31:16 ehsan-precision kernel: [17968.637803] ------------[ cut here ]------------ May 14 16:31:16 ehsan-precision kernel: [17968.637816] kernel BUG at /build/linux-2NWldV/linux-4.10.0/include/linux/swapops.h:129! May 14 16:31:16 ehsan-precision kernel: [17968.637835] invalid opcode: 0000 [#2] SMP May 14 16:31:16 ehsan-precision kernel: [17968.637849] Modules linked in: ccm arc4 rfcomm msr vmnet(OE) uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) cmac hid_multitouch btusb btrtl bnep binfmt_misc nls_iso8859_1 i2c_designware_platform i2c_designware_core snd_hda_codec_hdmi dell_wmi dell_led dell_smbios dcdbas dell_smm_hwmon snd_hda_codec_realtek intel_rapl snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm ath10k_pci ath10k_core aesni_intel aes_x86_64 crypto_simd ath snd_seq_midi glue_helper snd_seq_midi_event cryptd mac80211 snd_rawmidi input_leds joydev serio_raw snd_seq snd_seq_device snd_timer May 14 16:31:16 ehsan-precision kernel: [17968.637984] cfg80211 rtsx_pci_ms snd memstick soundcore idma64 virt_dma processor_thermal_device mei_me intel_soc_dts_iosf mei intel_lpss_pci shpchp intel_pch_thermal hci_uart btbcm btqca btintel bluetooth intel_lpss_acpi intel_lpss intel_hid dell_smo8800 int3403_thermal int340x_thermal_zone mac_hid tpm_crb int3400_thermal sparse_keymap acpi_thermal_rel acpi_als acpi_pad kfifo_buf industrialio parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs xor raid6_pq usbhid nouveau rtsx_pci_sdmmc i915 mxm_wmi ttm i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt psmouse fb_sys_fops nvme drm nvme_core ahci rtsx_pci libahci i2c_hid hid pinctrl_sunrisepoint wmi video pinctrl_intel fjes May 14 16:31:16 ehsan-precision kernel: [17968.638106] CPU: 5 PID: 3469 Comm: Web Content Tainted: G D OE 4.10.0-20-generic #22-Ubuntu May 14 16:31:16 ehsan-precision kernel: [17968.638123] Hardware name: Dell Inc. Precision 5520/06X96V, BIOS 1.0.2 12/28/2016 May 14 16:31:16 ehsan-precision kernel: [17968.638138] task: ffff970d46b3dc00 task.stack: ffffbaf7860ac000 May 14 16:31:16 ehsan-precision kernel: [17968.638152] RIP: 0010:__migration_entry_wait+0x16a/0x180 May 14 16:31:16 ehsan-precision kernel: [17968.638163] RSP: 0000:ffffbaf7860afd68 EFLAGS: 00010246 May 14 16:31:16 ehsan-precision kernel: [17968.638174] RAX: 0017ffffc0048078 RBX: fffff21a543f7970 RCX: fffff21a543f7970 May 14 16:31:16 ehsan-precision kernel: [17968.638188] RDX: 0000000000000001 RSI: ffff970a4fde5800 RDI: fffff21a5274c000 May 14 16:31:16 ehsan-precision kernel: [17968.638201] RBP: ffffbaf7860afd80 R08: ffff970d44f5f440 R09: ffff970d44f5f440 May 14 16:31:16 ehsan-precision kernel: [17968.638215] R10: 00007faa77f00000 R11: 00007faa6db00000 R12: fffff21a5274c000 May 14 16:31:16 ehsan-precision kernel: [17968.638229] R13: 3e0000000049d300 R14: ffffbaf7860afe30 R15: ffff970b1d8b7190 May 14 16:31:16 ehsan-precision kernel: [17968.638243] FS: 00007faac1e58ec0(0000) GS:ffff970dbf540000(0000) knlGS:0000000000000000 May 14 16:31:16 ehsan-precision kernel: [17968.638259] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 14 16:31:16 ehsan-precision kernel: [17968.638276] CR2: 00007faa77f00010 CR3: 000000080604e000 CR4: 00000000003406e0 May 14 16:31:16 ehsan-precision kernel: [17968.638290] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 May 14 16:31:16 ehsan-precision kernel: [17968.638304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 May 14 16:31:16 ehsan-precision kernel: [17968.638317] Call Trace: May 14 16:31:16 ehsan-precision kernel: [17968.638325] migration_entry_wait+0x74/0x80 May 14 16:31:16 ehsan-precision kernel: [17968.638336] do_swap_page+0x5b3/0x770 May 14 16:31:16 ehsan-precision kernel: [17968.638345] handle_mm_fault+0x873/0x1360 May 14 16:31:16 ehsan-precision kernel: [17968.638354] __do_page_fault+0x23e/0x4e0 May 14 16:31:16 ehsan-precision kernel: [17968.638363] do_page_fault+0x22/0x30 May 14 16:31:16 ehsan-precision kernel: [17968.638372] page_fault+0x28/0x30 May 14 16:31:16 ehsan-precision kernel: [17968.638380] RIP: 0033:0x418848 May 14 16:31:16 ehsan-precision kernel: [17968.638387] RSP: 002b:00007ffccce234d0 EFLAGS: 00010202 May 14 16:31:16 ehsan-precision kernel: [17968.638398] RAX: 00007faa85a00000 RBX: 00000000000000cb RCX: 00007faac06000d0 May 14 16:31:16 ehsan-precision kernel: [17968.638412] RDX: 00007faa80a00000 RSI: 00007faa85900000 RDI: 00007faac06000c8 May 14 16:31:16 ehsan-precision kernel: [17968.638426] RBP: 00007ffccce234d0 R08: 00007faa75900000 R09: 00007faac06000d1 May 14 16:31:16 ehsan-precision kernel: [17968.638440] R10: 00007faa77f00000 R11: 00007faa6db00000 R12: 0000000000000001 May 14 16:31:16 ehsan-precision kernel: [17968.638453] R13: 00007faa85900000 R14: 00007faac0600040 R15: 0000000000001000 May 14 16:31:16 ehsan-precision kernel: [17968.638467] Code: ff ff ff 4c 89 e7 e8 96 a2 f8 ff e9 3c ff ff ff 85 d2 0f 84 2a ff ff ff 8d 4a 01 89 d0 f0 41 0f b1 4d 00 39 d0 74 81 89 c2 eb e5 <0f> 0b 4c 89 e7 e8 0c fb f9 ff eb b8 4c 8d 60 ff 4c 8d 68 1b eb May 14 16:31:16 ehsan-precision kernel: [17968.638522] RIP: __migration_entry_wait+0x16a/0x180 RSP: ffffbaf7860afd68 May 14 16:31:16 ehsan-precision kernel: [17968.638536] ---[ end trace ce24be92311da3e7 ]--- May 14 16:31:43 ehsan-precision kernel: [17995.089221] Modules linked in: ccm arc4 rfcomm msr vmnet(OE) uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) cmac hid_multitouch btusb btrtl bnep binfmt_misc nls_iso8859_1 i2c_designware_platform i2c_designware_core snd_hda_codec_hdmi dell_wmi dell_led dell_smbios dcdbas dell_smm_hwmon snd_hda_codec_realtek intel_rapl snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm ath10k_pci ath10k_core aesni_intel aes_x86_64 crypto_simd ath snd_seq_midi glue_helper snd_seq_midi_event cryptd mac80211 snd_rawmidi input_leds joydev serio_raw snd_seq snd_seq_device snd_timer May 14 16:31:43 ehsan-precision kernel: [17995.089281] cfg80211 rtsx_pci_ms snd memstick soundcore idma64 virt_dma processor_thermal_device mei_me intel_soc_dts_iosf mei intel_lpss_pci shpchp intel_pch_thermal hci_uart btbcm btqca btintel bluetooth intel_lpss -- 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/1687267 Title: kernel BUG at /build/linux- 2NWldV/linux-4.10.0/include/linux/swapops.h:129! Status in linux package in Ubuntu: Confirmed Bug description: First traceback looks to be the cause. The second traceback is the effect that followed (repeatedly). Don't think it's specific to system76. Apr 30 09:56:10 galago kernel: [97085.090114] ------------[ cut here ]------------ Apr 30 09:56:10 galago kernel: [97085.090137] kernel BUG at /build/linux-2NWldV/linux-4.10.0/include/linux/swapops.h:129! Apr 30 09:56:10 galago kernel: [97085.090157] invalid opcode: 0000 [#1] SMP Apr 30 09:56:10 galago kernel: [97085.090167] Modules linked in: nls_iso8859_1 uas usb_storage ccm rfcomm ipt_MASQUERADE nf_nat_masquerade_ipv4 xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack nf_nat nf_conntrack libcrc32c br_netfilter bridge stp llc aufs ec_sys cmac bnep arc4 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_hda_codec_hdmi kvm irqbypass crct10dif_pclmul crc32_pclmul snd_hda_codec_via ghash_clmulni_intel snd_hda_codec_generic pcbc snd_hda_intel snd_hda_codec iwlmvm snd_hda_core snd_hwdep aesni_intel snd_pcm uvcvideo mac80211 aes_x86_64 snd_seq_midi videobuf2_vmalloc crypto_simd snd_seq_midi_event glue_helper videobuf2_memops cryptd videobuf2_v4l2 btusb snd_rawmidi videobuf2_core btrtl snd_seq btbcm intel_cstate videodev btintel Apr 30 09:56:10 galago kernel: [97085.090334] bluetooth snd_seq_device media intel_rapl_perf iwlwifi snd_timer joydev input_leds cfg80211 rtsx_pci_ms snd memstick mei_me soundcore mei lpc_ich shpchp serio_raw tpm_infineon mac_hid binfmt_misc cuse parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log i915 rtsx_pci_sdmmc i2c_algo_bit drm_kms_helper psmouse e1000e syscopyarea sysfillrect ahci sysimgblt fb_sys_fops libahci drm ptp rtsx_pci pps_core wmi fjes video Apr 30 09:56:10 galago kernel: [97085.090439] CPU: 0 PID: 3534 Comm: JS Helper Not tainted 4.10.0-20-generic #22-Ubuntu Apr 30 09:56:10 galago kernel: [97085.090457] Hardware name: System76, Inc. Galago UltraPro/W740SU , BIOS 4.6.5 12/12/2013 Apr 30 09:56:10 galago kernel: [97085.090481] task: ffff9003eb142d00 task.stack: ffffa0fb83c34000 Apr 30 09:56:10 galago kernel: [97085.090499] RIP: 0010:__migration_entry_wait+0x16a/0x180 Apr 30 09:56:10 galago kernel: [97085.090512] RSP: 0000:ffffa0fb83c37d68 EFLAGS: 00010246 Apr 30 09:56:10 galago kernel: [97085.090525] RAX: 000fffffc0048078 RBX: fffffaefcf1c69f0 RCX: fffffaefcf1c69f0 Apr 30 09:56:10 galago kernel: [97085.090542] RDX: 0000000000000001 RSI: ffff9003c71a7800 RDI: fffffaefc2f44000 Apr 30 09:56:10 galago kernel: [97085.090559] RBP: ffffa0fb83c37d80 R08: ffff9003ebb38000 R09: ffff9003ebb38000 Apr 30 09:56:10 galago kernel: [97085.090576] R10: 00007fc0379000c8 R11: 0000000000000206 R12: fffffaefc2f44000 Apr 30 09:56:10 galago kernel: [97085.090592] R13: 3e000000000bd100 R14: ffffa0fb83c37e30 R15: ffff9003d0b80898 Apr 30 09:56:10 galago kernel: [97085.090609] FS: 00007fc01b3fa700(0000) GS:ffff90041fa00000(0000) knlGS:0000000000000000 Apr 30 09:56:10 galago kernel: [97085.090628] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Apr 30 09:56:10 galago kernel: [97085.090642] CR2: 00007fc004700018 CR3: 00000003c70f9000 CR4: 00000000001406f0 Apr 30 09:56:10 galago kernel: [97085.090658] Call Trace: Apr 30 09:56:10 galago kernel: [97085.090667] migration_entry_wait+0x74/0x80 Apr 30 09:56:10 galago kernel: [97085.090680] do_swap_page+0x5b3/0x770 Apr 30 09:56:10 galago kernel: [97085.090691] handle_mm_fault+0x873/0x1360 Apr 30 09:56:10 galago kernel: [97085.090703] __do_page_fault+0x23e/0x4e0 Apr 30 09:56:10 galago kernel: [97085.090715] do_page_fault+0x22/0x30 Apr 30 09:56:10 galago kernel: [97085.090726] page_fault+0x28/0x30 Apr 30 09:56:10 galago kernel: [97085.090735] RIP: 0033:0x56520e6072b4 Apr 30 09:56:10 galago kernel: [97085.090744] RSP: 002b:00007fc01b3f9c40 EFLAGS: 00010203 Apr 30 09:56:10 galago kernel: [97085.090757] RAX: 0000000000000000 RBX: 00007fc037900040 RCX: 00007fc037b7b137 Apr 30 09:56:10 galago kernel: [97085.090774] RDX: 0000000000000008 RSI: 0000000000002000 RDI: 00007fc0047ba000 Apr 30 09:56:10 galago kernel: [97085.090790] RBP: 00007fc004700000 R08: 00007fc0379000c8 R09: 0000000000000000 Apr 30 09:56:10 galago kernel: [97085.090807] R10: 00007fc0379000c8 R11: 0000000000000206 R12: 0000000000000080 Apr 30 09:56:10 galago kernel: [97085.090824] R13: 00007fc0379000c8 R14: 00000000000000b9 R15: 0000000000000002 Apr 30 09:56:10 galago kernel: [97085.090840] Code: ff ff ff 4c 89 e7 e8 96 a2 f8 ff e9 3c ff ff ff 85 d2 0f 84 2a ff ff ff 8d 4a 01 89 d0 f0 41 0f b1 4d 00 39 d0 74 81 89 c2 eb e5 <0f> 0b 4c 89 e7 e8 0c fb f9 ff eb b8 4c 8d 60 ff 4c 8d 68 1b eb Apr 30 09:56:10 galago kernel: [97085.090897] RIP: __migration_entry_wait+0x16a/0x180 RSP: ffffa0fb83c37d68 Apr 30 09:56:10 galago kernel: [97085.096483] ---[ end trace 03fb86cf3cfe64f3 ]--- Apr 30 09:56:25 galago kernel: [97100.371032] iwlwifi 0000:03:00.0: Queue 10 stuck for 10000 ms. Apr 30 09:56:25 galago kernel: [97100.371036] iwlwifi 0000:03:00.0: Current SW read_ptr 184 write_ptr 190 Apr 30 09:56:25 galago kernel: [97100.371114] iwl data: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ Apr 30 09:56:25 galago kernel: [97100.371126] iwlwifi 0000:03:00.0: FH TRBs(0) = 0x00000000 Apr 30 09:56:25 galago kernel: [97100.371137] iwlwifi 0000:03:00.0: FH TRBs(1) = 0xc010a0bd Apr 30 09:56:25 galago kernel: [97100.371148] iwlwifi 0000:03:00.0: FH TRBs(2) = 0x00000000 Apr 30 09:56:25 galago kernel: [97100.371159] iwlwifi 0000:03:00.0: FH TRBs(3) = 0xc030b029 Apr 30 09:56:25 galago kernel: [97100.371170] iwlwifi 0000:03:00.0: FH TRBs(4) = 0x00000000 Apr 30 09:56:25 galago kernel: [97100.371181] iwlwifi 0000:03:00.0: FH TRBs(5) = 0x00000000 Apr 30 09:56:25 galago kernel: [97100.371193] iwlwifi 0000:03:00.0: FH TRBs(6) = 0x00000000 Apr 30 09:56:25 galago kernel: [97100.371204] iwlwifi 0000:03:00.0: FH TRBs(7) = 0x00700027 Apr 30 09:56:25 galago kernel: [97100.371253] iwlwifi 0000:03:00.0: Q 0 is active and mapped to fifo 7 ra_tid 0x0000 [40,40] Apr 30 09:56:25 galago kernel: [97100.371302] iwlwifi 0000:03:00.0: Q 1 is active and mapped to fifo 5 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.371351] iwlwifi 0000:03:00.0: Q 2 is active and mapped to fifo 3 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.371400] iwlwifi 0000:03:00.0: Q 3 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.371448] iwlwifi 0000:03:00.0: Q 4 is active and mapped to fifo 3 ra_tid 0x0000 [3,3] Apr 30 09:56:25 galago kernel: [97100.371497] iwlwifi 0000:03:00.0: Q 5 is active and mapped to fifo 3 ra_tid 0x0000 [128,128] Apr 30 09:56:25 galago kernel: [97100.371546] iwlwifi 0000:03:00.0: Q 6 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.371595] iwlwifi 0000:03:00.0: Q 7 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.371644] iwlwifi 0000:03:00.0: Q 8 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.371692] iwlwifi 0000:03:00.0: Q 9 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.371741] iwlwifi 0000:03:00.0: Q 10 is active and mapped to fifo 1 ra_tid 0x0000 [190,190] Apr 30 09:56:25 galago kernel: [97100.371790] iwlwifi 0000:03:00.0: Q 11 is active and mapped to fifo 3 ra_tid 0x0000 [42,42] Apr 30 09:56:25 galago kernel: [97100.371839] iwlwifi 0000:03:00.0: Q 12 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.371888] iwlwifi 0000:03:00.0: Q 13 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.371937] iwlwifi 0000:03:00.0: Q 14 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.371985] iwlwifi 0000:03:00.0: Q 15 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372034] iwlwifi 0000:03:00.0: Q 16 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372083] iwlwifi 0000:03:00.0: Q 17 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372132] iwlwifi 0000:03:00.0: Q 18 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372181] iwlwifi 0000:03:00.0: Q 19 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372229] iwlwifi 0000:03:00.0: Q 20 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372278] iwlwifi 0000:03:00.0: Q 21 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372327] iwlwifi 0000:03:00.0: Q 22 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372376] iwlwifi 0000:03:00.0: Q 23 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372425] iwlwifi 0000:03:00.0: Q 24 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372474] iwlwifi 0000:03:00.0: Q 25 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372522] iwlwifi 0000:03:00.0: Q 26 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372571] iwlwifi 0000:03:00.0: Q 27 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372620] iwlwifi 0000:03:00.0: Q 28 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372669] iwlwifi 0000:03:00.0: Q 29 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:25 galago kernel: [97100.372718] iwlwifi 0000:03:00.0: Q 30 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] Apr 30 09:56:29 galago kernel: [97104.210956] iwlwifi 0000:03:00.0: regular scan timed out Apr 30 09:56:34 galago compiz[2721]: WARN 2017-04-30 09:56:34 unity.iconloader IconLoader.cpp:264 Unable to load icon gnat-programming-studio at size 64 Apr 30 09:56:37 galago kernel: [97111.890198] NMI watchdog: BUG: soft lockup - CPU#7 stuck for 22s! [JS Helper:3538] Apr 30 09:56:37 galago kernel: [97111.890201] Modules linked in: nls_iso8859_1 uas usb_storage ccm rfcomm ipt_MASQUERADE nf_nat_masquerade_ipv4 xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack nf_nat nf_conntrack libcrc32c br_netfilter bridge stp llc aufs ec_sys cmac bnep arc4 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_hda_codec_hdmi kvm irqbypass crct10dif_pclmul crc32_pclmul snd_hda_codec_via ghash_clmulni_intel snd_hda_codec_generic pcbc snd_hda_intel snd_hda_codec iwlmvm snd_hda_core snd_hwdep aesni_intel snd_pcm uvcvideo mac80211 aes_x86_64 snd_seq_midi videobuf2_vmalloc crypto_simd snd_seq_midi_event glue_helper videobuf2_memops cryptd videobuf2_v4l2 btusb snd_rawmidi videobuf2_core btrtl snd_seq btbcm intel_cstate videodev btintel Apr 30 09:56:37 galago kernel: [97111.890226] bluetooth snd_seq_device media intel_rapl_perf iwlwifi snd_timer joydev input_leds cfg80211 rtsx_pci_ms snd memstick mei_me soundcore mei lpc_ich shpchp serio_raw tpm_infineon mac_hid binfmt_misc cuse parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log i915 rtsx_pci_sdmmc i2c_algo_bit drm_kms_helper psmouse e1000e syscopyarea sysfillrect ahci sysimgblt fb_sys_fops libahci drm ptp rtsx_pci pps_core wmi fjes video Apr 30 09:56:37 galago kernel: [97111.890246] CPU: 7 PID: 3538 Comm: JS Helper Tainted: G D 4.10.0-20-generic #22-Ubuntu Apr 30 09:56:37 galago kernel: [97111.890247] Hardware name: System76, Inc. Galago UltraPro/W740SU , BIOS 4.6.5 12/12/2013 Apr 30 09:56:37 galago kernel: [97111.890248] task: ffff9003b1845a00 task.stack: ffffa0fb83c5c000 Apr 30 09:56:37 galago kernel: [97111.890251] RIP: 0010:native_queued_spin_lock_slowpath+0x179/0x1a0 Apr 30 09:56:37 galago kernel: [97111.890252] RSP: 0000:ffffa0fb83c5fd48 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10 Apr 30 09:56:37 galago kernel: [97111.890253] RAX: 0000000000000101 RBX: fffffaefcf1c69f0 RCX: 0000000000000001 Apr 30 09:56:37 galago kernel: [97111.890254] RDX: 0000000000000101 RSI: 0000000000000001 RDI: fffffaefcf1c69f0 Apr 30 09:56:37 galago kernel: [97111.890255] RBP: ffffa0fb83c5fd48 R08: 0000000000000101 R09: ffff9003ebb38000 Apr 30 09:56:37 galago kernel: [97111.890256] R10: 002bdafa7674f914 R11: 0000000000000001 R12: ffff9003c71a77f8 Apr 30 09:56:37 galago kernel: [97111.890256] R13: 3e000000000bd0ff R14: ffffa0fb83c5fe30 R15: ffff9003d0b80898 Apr 30 09:56:37 galago kernel: [97111.890257] FS: 00007fc0193f6700(0000) GS:ffff90041fbc0000(0000) knlGS:0000000000000000 Apr 30 09:56:37 galago kernel: [97111.890258] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Apr 30 09:56:37 galago kernel: [97111.890259] CR2: 00007fc0046fffe8 CR3: 00000003c70f9000 CR4: 00000000001406e0 Apr 30 09:56:37 galago kernel: [97111.890260] Call Trace: Apr 30 09:56:37 galago kernel: [97111.890264] _raw_spin_lock+0x20/0x30 Apr 30 09:56:37 galago kernel: [97111.890267] __migration_entry_wait+0x1c/0x180 Apr 30 09:56:37 galago kernel: [97111.890268] migration_entry_wait+0x74/0x80 Apr 30 09:56:37 galago kernel: [97111.890271] do_swap_page+0x5b3/0x770 Apr 30 09:56:37 galago kernel: [97111.890272] ? futex_wake+0x90/0x170 Apr 30 09:56:37 galago kernel: [97111.890274] handle_mm_fault+0x873/0x1360 Apr 30 09:56:37 galago kernel: [97111.890276] __do_page_fault+0x23e/0x4e0 Apr 30 09:56:37 galago kernel: [97111.890278] do_page_fault+0x22/0x30 Apr 30 09:56:37 galago kernel: [97111.890279] page_fault+0x28/0x30 Apr 30 09:56:37 galago kernel: [97111.890280] RIP: 0033:0x7fc02a1d1cb6 Apr 30 09:56:37 galago kernel: [97111.890281] RSP: 002b:00007fc0193f5d70 EFLAGS: 00010206 Apr 30 09:56:37 galago kernel: [97111.890282] RAX: 00007fc0046fffe8 RBX: 00007fc004600120 RCX: 000000000000d3e4 Apr 30 09:56:37 galago kernel: [97111.890283] RDX: 000000000000034f RSI: 00007fc0193f5de8 RDI: 00007fc0193f5da0 Apr 30 09:56:37 galago kernel: [97111.890283] RBP: 00007fc004600000 R08: 0000000000000000 R09: 00000000000316e2 Apr 30 09:56:37 galago kernel: [97111.890284] R10: 002bdafa7674f914 R11: 0000000000000001 R12: 00007fc0193f5da0 Apr 30 09:56:37 galago kernel: [97111.890285] R13: 0000000000000001 R14: 00007fc016e65b60 R15: 00007fbf6d249228 Apr 30 09:56:37 galago kernel: [97111.890285] Code: 41 39 c0 74 e6 4d 85 c9 c6 07 01 74 30 41 c7 41 08 01 00 00 00 e9 52 ff ff ff 83 fa 01 0f 84 b0 fe ff ff 8b 07 84 c0 74 08 f3 90 <8b> 07 84 c0 75 f8 b8 01 00 00 00 66 89 07 5d c3 f3 90 4c 8b 09 ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: linux-image-generic 4.10.0.20.22 ProcVersionSignature: Ubuntu 4.10.0-20.22-generic 4.10.8 Uname: Linux 4.10.0-20-generic x86_64 ApportVersion: 2.20.4-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ibuclaw 2523 F.... pulseaudio /dev/snd/controlC1: ibuclaw 2523 F.... pulseaudio Date: Sun Apr 30 10:19:23 2017 HibernationDevice: RESUME=UUID=c3aa647d-dd0d-4383-9bab-ab04db2f011d MachineType: System76, Inc. Galago UltraPro ProcEnviron: LANGUAGE=en_GB:en TERM=xterm-256color PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-20-generic root=UUID=960b93c2-8517-409c-9b68-c874cf0961ab ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.10.0-20-generic N/A linux-backports-modules-4.10.0-20-generic N/A linux-firmware 1.164 SourcePackage: linux UpgradeStatus: Upgraded to zesty on 2017-04-25 (5 days ago) dmi.bios.date: 12/12/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4.6.5 dmi.board.asset.tag: Tag 12345 dmi.board.name: W740SU dmi.board.vendor: Notebook dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Notebook dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd12/12/2013:svnSystem76,Inc.:pnGalagoUltraPro:pvrgalu1:rvnNotebook:rnW740SU:rvrNotApplicable:cvnNotebook:ct9:cvrN/A: dmi.product.name: Galago UltraPro dmi.product.version: galu1 dmi.sys.vendor: System76, Inc. 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