Good Afternoon,
I have been digging into this issue further, and the problem is
definitely with the media driver.
Rebuilt the kernel with media drivers compiled in vice modular and the
kernel boots without issue.
The core dump states the crash occurred at
drivers/media/v4l2-core/v4l2-dev.c, line 945.
This line is checking if the vdev minor is actually free.
There were some significant changes to v4l in 4.16 from 4.15.
Considering the following behavior:
A. It panics if it boots immediately.
B. If booted to recovery for a period of time (~5 mins) then resumed
booting it boots without issue.
I believe that the module is being loaded before something it is
dependent on has initialized, causing this issue.
Thank you Jani for pointing out my error, I shouldn't debug at night.
Very Repspectfully,
Peter Geis
On 04/04/2018 09:26 AM, Jaak Ristioja wrote:
Hello, all!
I experience the same issue with a Lenovo ThinkPad T440p (LENOVO
20AN006VMS/20AN006VMS, BIOS GLET90WW (2.44 ) 09/13/2017). I tried to
bisect v4.15..v4.16 but failed.
Best regards,
J
On 04.04.2018 15:36, Jani Nikula wrote:
On Tue, 03 Apr 2018, Peter Geis <pgwipeout@xxxxxxxxx> wrote:
Good Evening,
I have been trying to use the 4.16 kernel source since 4.16-rc3.
Every time it booted it crashed upon loading the video drivers.
Now with the 4.16 release, it is still occurring, so I felt it prudent
to notify someone.
The machine is a Lenovo Yoga 900 80UE-ISK2.
It has a i7-6560u CPU with Intel integrated graphics.
This doesn't seem to have anything to do with Intel graphics. Based on
the backtraces, adding linux-media and linux-input mailing lists and
maintainers.
BR,
Jani.
I have included the kernel log, what format should I submit the vmcore
dump in?
Thanks,
Peter Geis
---Begin Log---
[ 43.177394] WARNING: CPU: 1 PID: 711 at
drivers/media/v4l2-core/v4l2-dev.c:945
__video_register_device+0xc99/0x1090 [videodev]
[ 43.177396] Modules linked in: hid_sensor_custom hid_sensor_als
hid_sensor_incl_3d hid_sensor_rotation hid_sensor_magn_3d
hid_sensor_accel_3d hid_sensor_gyro_3d hid_sensor_trigger
industrialio_triggered_buffer kfifo_buf joydev hid_sensor_iio_common
hid_rmi(+) rmi_core industrialio videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_common videodev hid_multitouch media
hid_sensor_hub binfmt_misc nls_iso8859_1 snd_hda_codec_hdmi arc4
snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core snd_soc_sst_dsp
snd_soc_sst_ipc snd_hda_codec_realtek snd_soc_acpi snd_hda_codec_generic
snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel
snd_hda_codec intel_rapl snd_hda_core x86_pkg_temp_thermal snd_hwdep
intel_powerclamp coretemp snd_pcm kvm_intel snd_seq_midi
snd_seq_midi_event snd_rawmidi crct10dif_pclmul
[ 43.177426] crc32_pclmul ghash_clmulni_intel iwlmvm pcbc mac80211
snd_seq aesni_intel iwlwifi aes_x86_64 snd_seq_device crypto_simd
glue_helper cryptd snd_timer intel_cstate intel_rapl_perf input_leds
serio_raw intel_wmi_thunderbolt snd wmi_bmof cfg80211 soundcore
ideapad_laptop sparse_keymap idma64 virt_dma tpm_crb acpi_pad
int3400_thermal acpi_thermal_rel intel_pch_thermal
processor_thermal_device mac_hid int340x_thermal_zone mei_me
intel_soc_dts_iosf mei intel_lpss_pci shpchp intel_lpss sch_fq_codel
vfio_pci nfsd vfio_virqfd parport_pc ppdev auth_rpcgss nfs_acl lockd
grace lp parport sunrpc ip_tables x_tables autofs4 hid_logitech_hidpp
hid_logitech_dj hid_generic usbhid kvmgt vfio_mdev mdev vfio_iommu_type1
vfio kvm irqbypass i915 i2c_algo_bit drm_kms_helper syscopyarea
sdhci_pci sysfillrect
[ 43.177466] sysimgblt cqhci fb_sys_fops sdhci drm i2c_hid wmi hid
video pinctrl_sunrisepoint pinctrl_intel
[ 43.177474] CPU: 1 PID: 711 Comm: systemd-udevd Not tainted 4.16.0 #1
[ 43.177475] Hardware name: LENOVO 80UE/VIUU4, BIOS 2UCN10T 10/14/2016
[ 43.177481] RIP: 0010:__video_register_device+0xc99/0x1090 [videodev]
[ 43.177482] RSP: 0000:ffffa5c5c231b420 EFLAGS: 00010202
[ 43.177484] RAX: 0000000000000000 RBX: 0000000000000005 RCX:
0000000000000000
[ 43.177485] RDX: ffffffffc0c44cc0 RSI: ffffffffffffffff RDI:
ffffffffc0c44cc0
[ 43.177486] RBP: ffffa5c5c231b478 R08: ffffffffc0c96900 R09:
ffff8eda1a51f018
[ 43.177487] R10: 0000000000000600 R11: 00000000000003b6 R12:
0000000000000000
[ 43.177488] R13: 0000000000000005 R14: ffffffffc0c96900 R15:
ffff8eda1d6d91c0
[ 43.177489] FS: 00007fd2d8ef2480(0000) GS:ffff8eda33480000(0000)
knlGS:0000000000000000
[ 43.177490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 43.177491] CR2: 00007ffe0a6ad01c CR3: 0000000456ae2004 CR4:
00000000003606e0
[ 43.177492] Call Trace:
[ 43.177498] ? devres_add+0x5f/0x70
[ 43.177502] rmi_f54_probe+0x437/0x470 [rmi_core]
[ 43.177505] rmi_function_probe+0x25/0x30 [rmi_core]
[ 43.177507] driver_probe_device+0x310/0x480
[ 43.177509] __device_attach_driver+0x86/0x100
[ 43.177511] ? __driver_attach+0xf0/0xf0
[ 43.177512] bus_for_each_drv+0x6b/0xb0
[ 43.177514] __device_attach+0xdd/0x160
[ 43.177516] device_initial_probe+0x13/0x20
[ 43.177518] bus_probe_device+0x95/0xa0
[ 43.177519] device_add+0x44b/0x680
[ 43.177522] rmi_register_function+0x62/0xd0 [rmi_core]
[ 43.177525] rmi_create_function+0x112/0x1a0 [rmi_core]
[ 43.177527] ? rmi_driver_clear_irq_bits+0xc0/0xc0 [rmi_core]
[ 43.177530] rmi_scan_pdt+0xca/0x1a0 [rmi_core]
[ 43.177535] rmi_init_functions+0x5b/0x120 [rmi_core]
[ 43.177537] rmi_driver_probe+0x152/0x3c0 [rmi_core]
[ 43.177547] ? sysfs_create_link+0x25/0x40
[ 43.177549] driver_probe_device+0x310/0x480
[ 43.177551] __device_attach_driver+0x86/0x100
[ 43.177553] ? __driver_attach+0xf0/0xf0
[ 43.177554] bus_for_each_drv+0x6b/0xb0
[ 43.177556] __device_attach+0xdd/0x160
[ 43.177558] device_initial_probe+0x13/0x20
[ 43.177560] bus_probe_device+0x95/0xa0
[ 43.177561] device_add+0x44b/0x680
[ 43.177564] rmi_register_transport_device+0x84/0x100 [rmi_core]
[ 43.177568] rmi_input_configured+0xbf/0x1a0 [hid_rmi]
[ 43.177571] ? input_allocate_device+0xdf/0xf0
[ 43.177574] hidinput_connect+0x4a9/0x37a0 [hid]
[ 43.177578] hid_connect+0x326/0x3d0 [hid]
[ 43.177581] hid_hw_start+0x42/0x70 [hid]
[ 43.177583] rmi_probe+0x115/0x510 [hid_rmi]
[ 43.177586] hid_device_probe+0xd3/0x150 [hid]
[ 43.177588] ? sysfs_create_link+0x25/0x40
[ 43.177590] driver_probe_device+0x310/0x480
[ 43.177592] __driver_attach+0xbf/0xf0
[ 43.177593] ? driver_probe_device+0x480/0x480
[ 43.177595] bus_for_each_dev+0x74/0xb0
[ 43.177597] ? kmem_cache_alloc_trace+0x1a6/0x1c0
[ 43.177599] driver_attach+0x1e/0x20
[ 43.177600] bus_add_driver+0x167/0x260
[ 43.177602] ? 0xffffffffc0cbc000
[ 43.177604] driver_register+0x60/0xe0
[ 43.177605] ? 0xffffffffc0cbc000
[ 43.177607] __hid_register_driver+0x63/0x70 [hid]
[ 43.177610] rmi_driver_init+0x23/0x1000 [hid_rmi]
[ 43.177612] do_one_initcall+0x52/0x191
[ 43.177615] ? _cond_resched+0x19/0x40
[ 43.177617] ? kmem_cache_alloc_trace+0xa2/0x1c0
[ 43.177619] ? do_init_module+0x27/0x209
[ 43.177621] do_init_module+0x5f/0x209
[ 43.177623] load_module+0x1987/0x1f10
-- MORE -- forward: <SPACE>, <ENTER> or j backward: b or k quit: q
[ 43.177488] R13: 0000000000000005 R14: ffffffffc0c96900 R15:
ffff8eda1d6d91c0
[ 43.177489] FS: 00007fd2d8ef2480(0000) GS:ffff8eda33480000(0000)
knlGS:0000000000000000
[ 43.177490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 43.177491] CR2: 00007ffe0a6ad01c CR3: 0000000456ae2004 CR4:
00000000003606e0
[ 43.177492] Call Trace:
[ 43.177498] ? devres_add+0x5f/0x70
[ 43.177502] rmi_f54_probe+0x437/0x470 [rmi_core]
[ 43.177505] rmi_function_probe+0x25/0x30 [rmi_core]
[ 43.177507] driver_probe_device+0x310/0x480
[ 43.177509] __device_attach_driver+0x86/0x100
[ 43.177511] ? __driver_attach+0xf0/0xf0
[ 43.177512] bus_for_each_drv+0x6b/0xb0
[ 43.177514] __device_attach+0xdd/0x160
[ 43.177516] device_initial_probe+0x13/0x20
[ 43.177518] bus_probe_device+0x95/0xa0
[ 43.177519] device_add+0x44b/0x680
[ 43.177522] rmi_register_function+0x62/0xd0 [rmi_core]
[ 43.177525] rmi_create_function+0x112/0x1a0 [rmi_core]
[ 43.177527] ? rmi_driver_clear_irq_bits+0xc0/0xc0 [rmi_core]
[ 43.177530] rmi_scan_pdt+0xca/0x1a0 [rmi_core]
[ 43.177535] rmi_init_functions+0x5b/0x120 [rmi_core]
[ 43.177537] rmi_driver_probe+0x152/0x3c0 [rmi_core]
[ 43.177547] ? sysfs_create_link+0x25/0x40
[ 43.177549] driver_probe_device+0x310/0x480
[ 43.177551] __device_attach_driver+0x86/0x100
[ 43.177553] ? __driver_attach+0xf0/0xf0
[ 43.177554] bus_for_each_drv+0x6b/0xb0
[ 43.177556] __device_attach+0xdd/0x160
[ 43.177558] device_initial_probe+0x13/0x20
[ 43.177560] bus_probe_device+0x95/0xa0
[ 43.177561] device_add+0x44b/0x680
[ 43.177564] rmi_register_transport_device+0x84/0x100 [rmi_core]
[ 43.177568] rmi_input_configured+0xbf/0x1a0 [hid_rmi]
[ 43.177571] ? input_allocate_device+0xdf/0xf0
[ 43.177574] hidinput_connect+0x4a9/0x37a0 [hid]
[ 43.177578] hid_connect+0x326/0x3d0 [hid]
[ 43.177581] hid_hw_start+0x42/0x70 [hid]
[ 43.177583] rmi_probe+0x115/0x510 [hid_rmi]
[ 43.177586] hid_device_probe+0xd3/0x150 [hid]
[ 43.177588] ? sysfs_create_link+0x25/0x40
[ 43.177590] driver_probe_device+0x310/0x480
[ 43.177592] __driver_attach+0xbf/0xf0
[ 43.177593] ? driver_probe_device+0x480/0x480
[ 43.177595] bus_for_each_dev+0x74/0xb0
[ 43.177597] ? kmem_cache_alloc_trace+0x1a6/0x1c0
[ 43.177599] driver_attach+0x1e/0x20
[ 43.177600] bus_add_driver+0x167/0x260
[ 43.177602] ? 0xffffffffc0cbc000
[ 43.177604] driver_register+0x60/0xe0
[ 43.177605] ? 0xffffffffc0cbc000
[ 43.177607] __hid_register_driver+0x63/0x70 [hid]
[ 43.177610] rmi_driver_init+0x23/0x1000 [hid_rmi]
[ 43.177612] do_one_initcall+0x52/0x191
[ 43.177615] ? _cond_resched+0x19/0x40
[ 43.177617] ? kmem_cache_alloc_trace+0xa2/0x1c0
[ 43.177619] ? do_init_module+0x27/0x209
[ 43.177621] do_init_module+0x5f/0x209
[ 43.177623] load_module+0x1987/0x1f10
[ 43.177626] ? ima_post_read_file+0x96/0xa0
[ 43.177629] SYSC_finit_module+0xfc/0x120
[ 43.177630] ? SYSC_finit_module+0xfc/0x120
[ 43.177632] SyS_finit_module+0xe/0x10
[ 43.177634] do_syscall_64+0x73/0x130
[ 43.177637] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[ 43.177638] RIP: 0033:0x7fd2d880b839
[ 43.177639] RSP: 002b:00007ffe0a6b2368 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[ 43.177641] RAX: ffffffffffffffda RBX: 000055cdd86542e0 RCX:
00007fd2d880b839
[ 43.177641] RDX: 0000000000000000 RSI: 00007fd2d84ea0e5 RDI:
0000000000000016
[ 43.177642] RBP: 00007fd2d84ea0e5 R08: 0000000000000000 R09:
00007ffe0a6b2480
[ 43.177643] R10: 0000000000000016 R11: 0000000000000246 R12:
0000000000000000
[ 43.177644] R13: 000055cdd8688930 R14: 0000000000020000 R15:
000055cdd86542e0
[ 43.177645] Code: 48 c7 c7 54 b4 c3 c0 e8 96 9d ec dd e9 d4 fb ff ff
0f 0b 41 be ea ff ff ff e9 c7 fb ff ff 0f 0b 41 be ea ff ff ff e9 ba fb
ff ff <0f> 0b e9 d8 f4 ff ff 83 fa 01 0f 84 c4 02 00 00 48 83 78 68 00
[ 43.177675] ---[ end trace d44d9bc41477c2dd ]---
[ 43.177679] BUG: unable to handle kernel NULL pointer dereference at
0000000000000499
[ 43.177723] IP: __video_register_device+0x1cc/0x1090 [videodev]
[ 43.177749] PGD 0 P4D 0
[ 43.177764] Oops: 0000 [#1] SMP PTI
[ 43.177780] Modules linked in: hid_sensor_custom hid_sensor_als
hid_sensor_incl_3d hid_sensor_rotation hid_sensor_magn_3d
hid_sensor_accel_3d hid_sensor_gyro_3d hid_sensor_trigger
industrialio_triggered_buffer kfifo_buf joydev hid_sensor_iio_common
hid_rmi(+) rmi_core industrialio videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_common videodev hid_multitouch media
hid_sensor_hub binfmt_misc nls_iso8859_1 snd_hda_codec_hdmi arc4
snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core snd_soc_sst_dsp
snd_soc_sst_ipc snd_hda_codec_realtek snd_soc_acpi snd_hda_codec_generic
snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel
snd_hda_codec intel_rapl snd_hda_core x86_pkg_temp_thermal snd_hwdep
intel_powerclamp coretemp snd_pcm kvm_intel snd_seq_midi
snd_seq_midi_event snd_rawmidi crct10dif_pclmul
[ 43.178055] crc32_pclmul ghash_clmulni_intel iwlmvm pcbc mac80211
snd_seq aesni_intel iwlwifi aes_x86_64 snd_seq_device crypto_simd
glue_helper cryptd snd_timer intel_cstate intel_rapl_perf input_leds
serio_raw intel_wmi_thunderbolt snd wmi_bmof cfg80211 soundcore
ideapad_laptop sparse_keymap idma64 virt_dma tpm_crb acpi_pad
int3400_thermal acpi_thermal_rel intel_pch_thermal
processor_thermal_device mac_hid int340x_thermal_zone mei_me
intel_soc_dts_iosf mei intel_lpss_pci shpchp intel_lpss sch_fq_codel
vfio_pci nfsd vfio_virqfd parport_pc ppdev auth_rpcgss nfs_acl lockd
grace lp parport sunrpc ip_tables x_tables autofs4 hid_logitech_hidpp
hid_logitech_dj hid_generic usbhid kvmgt vfio_mdev mdev vfio_iommu_type1
vfio kvm irqbypass i915 i2c_algo_bit drm_kms_helper syscopyarea
sdhci_pci sysfillrect
[ 43.178337] sysimgblt cqhci fb_sys_fops sdhci drm i2c_hid wmi hid
video pinctrl_sunrisepoint pinctrl_intel
[ 43.178380] CPU: 1 PID: 711 Comm: systemd-udevd Tainted: G W
4.16.0 #1
[ 43.178411] Hardware name: LENOVO 80UE/VIUU4, BIOS 2UCN10T 10/14/2016
[ 43.178441] RIP: 0010:__video_register_device+0x1cc/0x1090 [videodev]
[ 43.178467] RSP: 0000:ffffa5c5c231b420 EFLAGS: 00010202
[ 43.178490] RAX: ffffffffc0c44cc0 RBX: 0000000000000005 RCX:
ffffffffc0c454c0
[ 43.178519] RDX: 0000000000000001 RSI: ffff8eda1d6d9118 RDI:
ffffffffc0c44cc0
[ 43.178549] RBP: ffffa5c5c231b478 R08: ffffffffc0c96900 R09:
ffff8eda1a51f018
[ 43.178579] R10: 0000000000000600 R11: 00000000000003b6 R12:
0000000000000000
[ 43.178608] R13: 0000000000000005 R14: ffffffffc0c96900 R15:
ffff8eda1d6d91c0
[ 43.178636] FS: 00007fd2d8ef2480(0000) GS:ffff8eda33480000(0000)
knlGS:0000000000000000
[ 43.178669] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 43.178693] CR2: 0000000000000499 CR3: 0000000456ae2004 CR4:
00000000003606e0
[ 43.178721] Call Trace:
[ 43.178736] ? devres_add+0x5f/0x70
[ 43.178755] rmi_f54_probe+0x437/0x470 [rmi_core]
[ 43.178779] rmi_function_probe+0x25/0x30 [rmi_core]
[ 43.178805] driver_probe_device+0x310/0x480
[ 43.178828] __device_attach_driver+0x86/0x100
[ 43.178851] ? __driver_attach+0xf0/0xf0
[ 43.178884] bus_for_each_drv+0x6b/0xb0
[ 43.178904] __device_attach+0xdd/0x160
[ 43.178925] device_initial_probe+0x13/0x20
[ 43.178948] bus_probe_device+0x95/0xa0
[ 43.178968] device_add+0x44b/0x680
[ 43.178987] rmi_register_function+0x62/0xd0 [rmi_core]
[ 43.181747] rmi_create_function+0x112/0x1a0 [rmi_core]
[ 43.184677] ? rmi_driver_clear_irq_bits+0xc0/0xc0 [rmi_core]
[ 43.187505] rmi_scan_pdt+0xca/0x1a0 [rmi_core]
[ 43.190171] rmi_init_functions+0x5b/0x120 [rmi_core]
[ 43.192809] rmi_driver_probe+0x152/0x3c0 [rmi_core]
[ 43.195403] ? sysfs_create_link+0x25/0x40
[ 43.198253] driver_probe_device+0x310/0x480
[ 43.201083] __device_attach_driver+0x86/0x100
[ 43.203800] ? __driver_attach+0xf0/0xf0
[ 43.206503] bus_for_each_drv+0x6b/0xb0
[ 43.209291] __device_attach+0xdd/0x160
[ 43.212207] device_initial_probe+0x13/0x20
[ 43.215146] bus_probe_device+0x95/0xa0
[ 43.217885] device_add+0x44b/0x680
[ 43.220597] rmi_register_transport_device+0x84/0x100 [rmi_core]
[ 43.223321] rmi_input_configured+0xbf/0x1a0 [hid_rmi]
[ 43.226051] ? input_allocate_device+0xdf/0xf0
[ 43.228814] hidinput_connect+0x4a9/0x37a0 [hid]
[ 43.231701] hid_connect+0x326/0x3d0 [hid]
[ 43.234548] hid_hw_start+0x42/0x70 [hid]
[ 43.237302] rmi_probe+0x115/0x510 [hid_rmi]
[ 43.239862] hid_device_probe+0xd3/0x150 [hid]
[ 43.242558] ? sysfs_create_link+0x25/0x40
[ 43.242828] audit: type=1400 audit(1522795151.600:4):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/snap/core/4206/usr/lib/snapd/snap-confine" pid=1151
comm="apparmor_parser"
[ 43.244859] driver_probe_device+0x310/0x480
[ 43.244862] __driver_attach+0xbf/0xf0
[ 43.246982] audit: type=1400 audit(1522795151.600:5):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/snap/core/4206/usr/lib/snapd/snap-confine//mount-namespace-capture-helper"
pid=1151 comm="apparmor_parser"
[ 43.249403] ? driver_probe_device+0x480/0x480
[ 43.249405] bus_for_each_dev+0x74/0xb0
[ 43.253200] audit: type=1400 audit(1522795151.600:6):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/snap/core/4206/usr/lib/snapd/snap-confine//snap_update_ns"
pid=1151 comm="apparmor_parser"
[ 43.254055] ? kmem_cache_alloc_trace+0x1a6/0x1c0
[ 43.256282] audit: type=1400 audit(1522795151.604:7):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/sbin/dhclient" pid=1152 comm="apparmor_parser"
[ 43.258436] driver_attach+0x1e/0x20
[ 43.260875] audit: type=1400 audit(1522795151.604:8):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1152
comm="apparmor_parser"
[ 43.263118] bus_add_driver+0x167/0x260
[ 43.267676] audit: type=1400 audit(1522795151.604:9):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=1152
comm="apparmor_parser"
[ 43.268807] ? 0xffffffffc0cbc000
[ 43.268812] driver_register+0x60/0xe0
[ 43.271184] audit: type=1400 audit(1522795151.604:10):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/lib/connman/scripts/dhclient-script" pid=1152
comm="apparmor_parser"
[ 43.274081] ? 0xffffffffc0cbc000
[ 43.274086] __hid_register_driver+0x63/0x70 [hid]
[ 43.288367] rmi_driver_init+0x23/0x1000 [hid_rmi]
[ 43.291501] do_one_initcall+0x52/0x191
[ 43.292348] audit: type=1400 audit(1522795151.652:11):
apparmor="STATUS" operation="profile_load" profile="unconfined"
name="/usr/bin/man" pid=1242 comm="apparmor_parser"
[ 43.294212] ? _cond_resched+0x19/0x40
[ 43.300028] ? kmem_cache_alloc_trace+0xa2/0x1c0
[ 43.303475] ? do_init_module+0x27/0x209
[ 43.306842] do_init_module+0x5f/0x209
[ 43.310269] load_module+0x1987/0x1f10
[ 43.313704] ? ima_post_read_file+0x96/0xa0
[ 43.317174] SYSC_finit_module+0xfc/0x120
[ 43.320754] ? SYSC_finit_module+0xfc/0x120
[ 43.324065] SyS_finit_module+0xe/0x10
[ 43.327387] do_syscall_64+0x73/0x130
[ 43.330909] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[ 43.334305] RIP: 0033:0x7fd2d880b839
[ 43.337810] RSP: 002b:00007ffe0a6b2368 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[ 43.341259] RAX: ffffffffffffffda RBX: 000055cdd86542e0 RCX:
00007fd2d880b839
[ 43.344613] RDX: 0000000000000000 RSI: 00007fd2d84ea0e5 RDI:
0000000000000016
[ 43.347962] RBP: 00007fd2d84ea0e5 R08: 0000000000000000 R09:
00007ffe0a6b2480
[ 43.351456] R10: 0000000000000016 R11: 0000000000000246 R12:
0000000000000000
[ 43.354845] R13: 000055cdd8688930 R14: 0000000000020000 R15:
000055cdd86542e0
[ 43.358224] Code: c7 05 ad 12 02 00 00 00 00 00 48 8d 88 00 08 00 00
eb 09 48 83 c0 08 48 39 c1 74 31 48 8b 10 48 85 d2 74 ef 49 8b b7 98 04
00 00 <48> 39 b2 98 04 00 00 75 df 48 63 92 f8 04 00 00 f0 48 0f ab 15
[ 43.361764] RIP: __video_register_device+0x1cc/0x1090 [videodev] RSP:
ffffa5c5c231b420
[ 43.365281] CR2: 0000000000000499
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