Ok, this looks like a regression. Which kernel is the 16.04 laptop use? Can you please test kernel v4.9 and v4.10? I guess the regression was introduce between these two versions.
-- 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/1870014 Title: task blocked too long Status in linux package in Ubuntu: Confirmed Bug description: I plugged in the EasyCap device, then started VLC to read from it. Nothing worked, and I saw the following call traces from the kernel: Mar 31 23:48:30 cerberus kernel: [49598.934870] usb 3-6: new full-speed USB device number 41 using xhci_hcd Mar 31 23:48:30 cerberus kernel: [49599.062914] usb 3-6: device descriptor read/64, error -71 Mar 31 23:48:30 cerberus kernel: [49599.574905] usb 3-6: device descriptor read/64, error -71 Mar 31 23:48:31 cerberus kernel: [49599.682966] usb usb3-port6: attempt power cycle Mar 31 23:48:32 cerberus kernel: [49600.974908] usb usb3-port6: Cannot enable. Maybe the USB cable is bad? Mar 31 23:48:33 cerberus kernel: [49601.946905] usb usb3-port6: Cannot enable. Maybe the USB cable is bad? Mar 31 23:48:33 cerberus kernel: [49601.946975] usb usb3-port6: unable to enumerate USB device Mar 31 23:48:45 cerberus kernel: [49614.418840] usb 3-6: new high-speed USB device number 44 using xhci_hcd Mar 31 23:48:45 cerberus kernel: [49614.570267] usb 3-6: config 1 interface 0 altsetting 1 bulk endpoint 0x83 has invalid maxpa cket 256 Mar 31 23:48:45 cerberus kernel: [49614.573126] usb 3-6: New USB device found, idVendor=1b71, idProduct=3002 Mar 31 23:48:45 cerberus kernel: [49614.573130] usb 3-6: New USB device strings: Mfr=3, Product=4, SerialNumber=2 Mar 31 23:48:45 cerberus kernel: [49614.573132] usb 3-6: Product: usbtv007 Mar 31 23:48:45 cerberus kernel: [49614.573135] usb 3-6: Manufacturer: fushicai Mar 31 23:48:45 cerberus kernel: [49614.573136] usb 3-6: SerialNumber: 300000000002 Mar 31 23:48:45 cerberus kernel: [49614.574491] usbtv 3-6:1.0: Fushicai USBTV007 Audio-Video Grabber Mar 31 23:52:29 cerberus kernel: [49838.118469] usb 3-6: USB disconnect, device number 44 Mar 31 23:52:44 cerberus kernel: [49853.203903] perf: interrupt took too long (3978 > 3967), lowering kernel.perf_event_max_sam ple_rate to 50250 Mar 31 23:55:36 cerberus kernel: [50024.968505] INFO: task VideoCapture:11251 blocked for more than 120 seconds. Mar 31 23:55:36 cerberus kernel: [50024.968512] Tainted: G IOE 4.15.0-94-generic #95-Ubuntu Mar 31 23:55:36 cerberus kernel: [50024.968514] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 31 23:55:36 cerberus kernel: [50024.968517] VideoCapture D 0 11251 1 0x00000000 Mar 31 23:55:36 cerberus kernel: [50024.968521] Call Trace: Mar 31 23:55:36 cerberus kernel: [50024.968535] __schedule+0x24e/0x880 Mar 31 23:55:36 cerberus kernel: [50024.968539] schedule+0x2c/0x80 Mar 31 23:55:36 cerberus kernel: [50024.968542] schedule_preempt_disabled+0xe/0x10 Mar 31 23:55:36 cerberus kernel: [50024.968547] __mutex_lock.isra.5+0x276/0x4e0 Mar 31 23:55:36 cerberus kernel: [50024.968551] __mutex_lock_slowpath+0x13/0x20 Mar 31 23:55:36 cerberus kernel: [50024.968554] ? __mutex_lock_slowpath+0x13/0x20 Mar 31 23:55:36 cerberus kernel: [50024.968557] mutex_lock+0x2f/0x40 Mar 31 23:55:36 cerberus kernel: [50024.968569] _vb2_fop_release+0x29/0xa0 [videobuf2_v4l2] Mar 31 23:55:36 cerberus kernel: [50024.968573] vb2_fop_release+0x31/0x40 [videobuf2_v4l2] Mar 31 23:55:36 cerberus kernel: [50024.968593] v4l2_release+0x38/0x80 [videodev] Mar 31 23:55:36 cerberus kernel: [50024.968600] __fput+0xea/0x220 Mar 31 23:55:36 cerberus kernel: [50024.968604] ____fput+0xe/0x10 Mar 31 23:55:36 cerberus kernel: [50024.968611] task_work_run+0x9d/0xc0 Mar 31 23:55:36 cerberus kernel: [50024.968620] exit_to_usermode_loop+0xc0/0xd0 Mar 31 23:55:36 cerberus kernel: [50024.968623] do_syscall_64+0x121/0x130 Mar 31 23:55:36 cerberus kernel: [50024.968630] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 Mar 31 23:55:36 cerberus kernel: [50024.968633] RIP: 0033:0x7f6411c26447 Mar 31 23:55:36 cerberus kernel: [50024.968635] RSP: 002b:00007f63da9bd900 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 Mar 31 23:55:36 cerberus kernel: [50024.968638] RAX: 0000000000000000 RBX: 0000000000000064 RCX: 00007f6411c26447 Mar 31 23:55:36 cerberus kernel: [50024.968639] RDX: 0000000000000000 RSI: 00007f63da9bd930 RDI: 0000000000000064 Mar 31 23:55:36 cerberus kernel: [50024.968641] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 Mar 31 23:55:36 cerberus kernel: [50024.968642] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f628d4c5fa0 Mar 31 23:55:36 cerberus kernel: [50024.968644] R13: 0000000000000000 R14: 00007f640422d381 R15: 00007f63da9bd930 Mar 31 23:55:36 cerberus kernel: [50024.968915] INFO: task kworker/5:1:25898 blocked for more than 120 seconds. Mar 31 23:55:36 cerberus kernel: [50024.968918] Tainted: G IOE 4.15.0-94-generic #95-Ubuntu Mar 31 23:55:36 cerberus kernel: [50024.968920] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 31 23:55:36 cerberus kernel: [50024.968922] kworker/5:1 D 0 25898 2 0x80000000 Mar 31 23:55:36 cerberus kernel: [50024.968934] Workqueue: usb_hub_wq hub_event Mar 31 23:55:36 cerberus kernel: [50024.968936] Call Trace: Mar 31 23:55:36 cerberus kernel: [50024.968940] __schedule+0x24e/0x880 Mar 31 23:55:36 cerberus kernel: [50024.968943] ? schedule+0x2c/0x80 Mar 31 23:55:36 cerberus kernel: [50024.968945] schedule+0x2c/0x80 Mar 31 23:55:36 cerberus kernel: [50024.968948] schedule_preempt_disabled+0xe/0x10 Mar 31 23:55:36 cerberus kernel: [50024.968951] __mutex_lock.isra.5+0x276/0x4e0 Mar 31 23:55:36 cerberus kernel: [50024.968958] ? wake_up_q+0x80/0x80 Mar 31 23:55:36 cerberus kernel: [50024.968961] __mutex_lock_slowpath+0x13/0x20 Mar 31 23:55:36 cerberus kernel: [50024.968964] ? __mutex_lock_slowpath+0x13/0x20 Mar 31 23:55:36 cerberus kernel: [50024.968966] mutex_lock+0x2f/0x40 Mar 31 23:55:36 cerberus kernel: [50024.968973] usbtv_video_free+0x27/0x70 [usbtv] Mar 31 23:55:36 cerberus kernel: [50024.968977] usbtv_disconnect+0x31/0x50 [usbtv] Mar 31 23:55:36 cerberus kernel: [50024.968980] usb_unbind_interface+0x7e/0x270 Mar 31 23:55:36 cerberus kernel: [50024.968989] device_release_driver_internal+0x13a/0x220 Mar 31 23:55:36 cerberus kernel: [50024.968993] device_release_driver+0x12/0x20 Mar 31 23:55:36 cerberus kernel: [50024.968996] bus_remove_device+0xec/0x160 Mar 31 23:55:36 cerberus kernel: [50024.968999] device_del+0x169/0x3b0 Mar 31 23:55:36 cerberus kernel: [50024.969004] ? usb_remove_ep_devs+0x1f/0x30 Mar 31 23:55:36 cerberus kernel: [50024.969008] usb_disable_device+0x9f/0x250 Mar 31 23:55:36 cerberus kernel: [50024.969011] usb_disconnect+0xc6/0x270 Mar 31 23:55:36 cerberus kernel: [50024.969015] hub_port_connect+0x7d/0xa30 Mar 31 23:55:36 cerberus kernel: [50024.969018] hub_event+0x85e/0xb20 Mar 31 23:55:36 cerberus kernel: [50024.969022] ? __switch_to_asm+0x35/0x70 Mar 31 23:55:36 cerberus kernel: [50024.969025] ? __switch_to_asm+0x41/0x70 Mar 31 23:55:36 cerberus kernel: [50024.969028] ? __switch_to_asm+0x35/0x70 Mar 31 23:55:36 cerberus kernel: [50024.969032] process_one_work+0x1de/0x420 Mar 31 23:55:36 cerberus kernel: [50024.969036] worker_thread+0x32/0x410 Mar 31 23:55:36 cerberus kernel: [50024.969040] kthread+0x121/0x140 Mar 31 23:55:36 cerberus kernel: [50024.969042] ? process_one_work+0x420/0x420 Mar 31 23:55:36 cerberus kernel: [50024.969045] ? kthread_create_worker_on_cpu+0x70/0x70 Mar 31 23:55:36 cerberus kernel: [50024.969048] ret_from_fork+0x35/0x40 Mar 31 23:55:36 cerberus kernel: [50024.969061] INFO: task vlc:35414 blocked for more than 120 seconds. Mar 31 23:55:36 cerberus kernel: [50024.969064] Tainted: G IOE 4.15.0-94-generic #95-Ubuntu Mar 31 23:55:36 cerberus kernel: [50024.969065] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 31 23:55:36 cerberus kernel: [50024.969067] vlc D 0 35414 34858 0x00000004 Mar 31 23:55:36 cerberus kernel: [50024.969069] Call Trace: Mar 31 23:55:36 cerberus kernel: [50024.969073] __schedule+0x24e/0x880 Mar 31 23:55:36 cerberus kernel: [50024.969076] schedule+0x2c/0x80 Mar 31 23:55:36 cerberus kernel: [50024.969079] schedule_timeout+0x1cf/0x350 Mar 31 23:55:36 cerberus kernel: [50024.969086] ? __next_timer_interrupt+0xe0/0xe0 Mar 31 23:55:36 cerberus kernel: [50024.969089] wait_for_completion_timeout+0xb3/0x140 Mar 31 23:55:36 cerberus kernel: [50024.969092] ? wake_up_q+0x80/0x80 Mar 31 23:55:36 cerberus kernel: [50024.969096] usb_start_wait_urb+0x8c/0x180 Mar 31 23:55:36 cerberus kernel: [50024.969101] usb_control_msg+0xdc/0x140 Mar 31 23:55:36 cerberus kernel: [50024.969105] usbtv_set_regs+0x64/0x90 [usbtv] Mar 31 23:55:36 cerberus kernel: [50024.969109] usbtv_start_streaming+0x61/0x200 [usbtv] Mar 31 23:55:36 cerberus kernel: [50024.969117] vb2_start_streaming+0x6d/0x160 [videobuf2_core] Mar 31 23:55:36 cerberus kernel: [50024.969121] vb2_core_streamon+0xfc/0x130 [videobuf2_core] Mar 31 23:55:36 cerberus kernel: [50024.969125] vb2_streamon+0x29/0x50 [videobuf2_v4l2] Mar 31 23:55:36 cerberus kernel: [50024.969129] vb2_ioctl_streamon+0x42/0x50 [videobuf2_v4l2] Mar 31 23:55:36 cerberus kernel: [50024.969138] v4l_streamon+0x20/0x30 [videodev] Mar 31 23:55:36 cerberus kernel: [50024.969146] __video_do_ioctl+0x370/0x380 [videodev] Mar 31 23:55:36 cerberus kernel: [50024.969155] video_usercopy+0x24d/0x640 [videodev] Mar 31 23:55:36 cerberus kernel: [50024.969163] ? video_ioctl2+0x20/0x20 [videodev] Mar 31 23:55:36 cerberus kernel: [50024.969170] ? do_mmap+0x340/0x510 Mar 31 23:55:36 cerberus kernel: [50024.969177] video_ioctl2+0x15/0x20 [videodev] Mar 31 23:55:36 cerberus kernel: [50024.969184] v4l2_ioctl+0x84/0xf0 [videodev] Mar 31 23:55:36 cerberus kernel: [50024.969189] do_vfs_ioctl+0xa8/0x630 Mar 31 23:55:36 cerberus kernel: [50024.969193] SyS_ioctl+0x79/0x90 Mar 31 23:55:36 cerberus kernel: [50024.969197] do_syscall_64+0x73/0x130 Mar 31 23:55:36 cerberus kernel: [50024.969201] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 Mar 31 23:55:36 cerberus kernel: [50024.969203] RIP: 0033:0x7f2946529839 Mar 31 23:55:36 cerberus kernel: [50024.969204] RSP: 002b:00007f28ec7f7008 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Mar 31 23:55:36 cerberus kernel: [50024.969207] RAX: ffffffffffffffda RBX: 00007f28d47f4020 RCX: 00007f2946529839 Mar 31 23:55:36 cerberus kernel: [50024.969208] RDX: 00007f28ec7f7024 RSI: 0000000040045612 RDI: 0000000000000027 Mar 31 23:55:36 cerberus kernel: [50024.969209] RBP: 00007f28ec7f74b8 R08: 0000000000000000 R09: 0000000000000000 Mar 31 23:55:36 cerberus kernel: [50024.969211] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000040045612 Mar 31 23:55:36 cerberus kernel: [50024.969212] R13: 0000000040045612 R14: 00007f28ec7f8680 R15: 0000000000000027 Mar 31 23:57:37 cerberus kernel: [50145.798167] INFO: task VideoCapture:11251 blocked for more than 120 seconds. Mar 31 23:57:37 cerberus kernel: [50145.798174] Tainted: G IOE 4.15.0-94-generic #95-Ubuntu Mar 31 23:57:37 cerberus kernel: [50145.798176] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 31 23:57:37 cerberus kernel: [50145.798180] VideoCapture D 0 11251 1 0x00000000 Mar 31 23:57:37 cerberus kernel: [50145.798184] Call Trace: Mar 31 23:57:37 cerberus kernel: [50145.798198] __schedule+0x24e/0x880 Mar 31 23:57:37 cerberus kernel: [50145.798202] schedule+0x2c/0x80 Mar 31 23:57:37 cerberus kernel: [50145.798205] schedule_preempt_disabled+0xe/0x10 Mar 31 23:57:37 cerberus kernel: [50145.798210] __mutex_lock.isra.5+0x276/0x4e0 Mar 31 23:57:37 cerberus kernel: [50145.798214] __mutex_lock_slowpath+0x13/0x20 Mar 31 23:57:37 cerberus kernel: [50145.798217] ? __mutex_lock_slowpath+0x13/0x20 Mar 31 23:57:37 cerberus kernel: [50145.798220] mutex_lock+0x2f/0x40 Mar 31 23:57:37 cerberus kernel: [50145.798231] _vb2_fop_release+0x29/0xa0 [videobuf2_v4l2] Mar 31 23:57:37 cerberus kernel: [50145.798235] vb2_fop_release+0x31/0x40 [videobuf2_v4l2] Mar 31 23:57:37 cerberus kernel: [50145.798255] v4l2_release+0x38/0x80 [videodev] Mar 31 23:57:37 cerberus kernel: [50145.798263] __fput+0xea/0x220 Mar 31 23:57:37 cerberus kernel: [50145.798267] ____fput+0xe/0x10 Mar 31 23:57:37 cerberus kernel: [50145.798274] task_work_run+0x9d/0xc0 Mar 31 23:57:37 cerberus kernel: [50145.798282] exit_to_usermode_loop+0xc0/0xd0 Mar 31 23:57:37 cerberus kernel: [50145.798286] do_syscall_64+0x121/0x130 Mar 31 23:57:37 cerberus kernel: [50145.798292] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 Mar 31 23:57:37 cerberus kernel: [50145.798296] RIP: 0033:0x7f6411c26447 Mar 31 23:57:37 cerberus kernel: [50145.798298] RSP: 002b:00007f63da9bd900 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 Mar 31 23:57:37 cerberus kernel: [50145.798301] RAX: 0000000000000000 RBX: 0000000000000064 RCX: 00007f6411c26447 Mar 31 23:57:37 cerberus kernel: [50145.798302] RDX: 0000000000000000 RSI: 00007f63da9bd930 RDI: 0000000000000064 Mar 31 23:57:37 cerberus kernel: [50145.798304] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 Mar 31 23:57:37 cerberus kernel: [50145.798305] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f628d4c5fa0 Mar 31 23:57:37 cerberus kernel: [50145.798307] R13: 0000000000000000 R14: 00007f640422d381 R15: 00007f63da9bd930 Mar 31 23:57:37 cerberus kernel: [50145.798576] INFO: task kworker/5:1:25898 blocked for more than 120 seconds. Mar 31 23:57:37 cerberus kernel: [50145.798579] Tainted: G IOE 4.15.0-94-generic #95-Ubuntu Mar 31 23:57:37 cerberus kernel: [50145.798581] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 31 23:57:37 cerberus kernel: [50145.798583] kworker/5:1 D 0 25898 2 0x80000000 Mar 31 23:57:37 cerberus kernel: [50145.798595] Workqueue: usb_hub_wq hub_event Mar 31 23:57:37 cerberus kernel: [50145.798597] Call Trace: Mar 31 23:57:37 cerberus kernel: [50145.798600] __schedule+0x24e/0x880 Mar 31 23:57:37 cerberus kernel: [50145.798603] ? schedule+0x2c/0x80 Mar 31 23:57:37 cerberus kernel: [50145.798606] schedule+0x2c/0x80 Mar 31 23:57:37 cerberus kernel: [50145.798609] schedule_preempt_disabled+0xe/0x10 Mar 31 23:57:37 cerberus kernel: [50145.798612] __mutex_lock.isra.5+0x276/0x4e0 Mar 31 23:57:37 cerberus kernel: [50145.798619] ? wake_up_q+0x80/0x80 Mar 31 23:57:37 cerberus kernel: [50145.798622] __mutex_lock_slowpath+0x13/0x20 Mar 31 23:57:37 cerberus kernel: [50145.798624] ? __mutex_lock_slowpath+0x13/0x20 Mar 31 23:57:37 cerberus kernel: [50145.798627] mutex_lock+0x2f/0x40 Mar 31 23:57:37 cerberus kernel: [50145.798634] usbtv_video_free+0x27/0x70 [usbtv] Mar 31 23:57:37 cerberus kernel: [50145.798637] usbtv_disconnect+0x31/0x50 [usbtv] Mar 31 23:57:37 cerberus kernel: [50145.798641] usb_unbind_interface+0x7e/0x270 Mar 31 23:57:37 cerberus kernel: [50145.798650] device_release_driver_internal+0x13a/0x220 Mar 31 23:57:37 cerberus kernel: [50145.798654] device_release_driver+0x12/0x20 Mar 31 23:57:37 cerberus kernel: [50145.798657] bus_remove_device+0xec/0x160 Mar 31 23:57:37 cerberus kernel: [50145.798660] device_del+0x169/0x3b0 Mar 31 23:57:37 cerberus kernel: [50145.798664] ? usb_remove_ep_devs+0x1f/0x30 Mar 31 23:57:37 cerberus kernel: [50145.798669] usb_disable_device+0x9f/0x250 Mar 31 23:57:37 cerberus kernel: [50145.798672] usb_disconnect+0xc6/0x270 Mar 31 23:57:37 cerberus kernel: [50145.798676] hub_port_connect+0x7d/0xa30 Mar 31 23:57:37 cerberus kernel: [50145.798679] hub_event+0x85e/0xb20 Mar 31 23:57:37 cerberus kernel: [50145.798683] ? __switch_to_asm+0x35/0x70 Mar 31 23:57:37 cerberus kernel: [50145.798686] ? __switch_to_asm+0x41/0x70 Mar 31 23:57:37 cerberus kernel: [50145.798689] ? __switch_to_asm+0x35/0x70 Mar 31 23:57:37 cerberus kernel: [50145.798694] process_one_work+0x1de/0x420 Mar 31 23:57:37 cerberus kernel: [50145.798697] worker_thread+0x32/0x410 Mar 31 23:57:37 cerberus kernel: [50145.798701] kthread+0x121/0x140 Mar 31 23:57:37 cerberus kernel: [50145.798704] ? process_one_work+0x420/0x420 Mar 31 23:57:37 cerberus kernel: [50145.798706] ? kthread_create_worker_on_cpu+0x70/0x70 Mar 31 23:57:37 cerberus kernel: [50145.798710] ret_from_fork+0x35/0x40 Mar 31 23:57:37 cerberus kernel: [50145.798721] INFO: task vlc:35414 blocked for more than 120 seconds. Mar 31 23:57:37 cerberus kernel: [50145.798723] Tainted: G IOE 4.15.0-94-generic #95-Ubuntu Mar 31 23:57:37 cerberus kernel: [50145.798725] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 31 23:57:37 cerberus kernel: [50145.798727] vlc D 0 35414 4218 0x00000004 Mar 31 23:57:37 cerberus kernel: [50145.798729] Call Trace: Mar 31 23:57:37 cerberus kernel: [50145.798733] __schedule+0x24e/0x880 Mar 31 23:57:37 cerberus kernel: [50145.798736] schedule+0x2c/0x80 Mar 31 23:57:37 cerberus kernel: [50145.798739] schedule_timeout+0x1cf/0x350 Mar 31 23:57:37 cerberus kernel: [50145.798746] ? __next_timer_interrupt+0xe0/0xe0 Mar 31 23:57:37 cerberus kernel: [50145.798749] wait_for_completion_timeout+0xb3/0x140 Mar 31 23:57:37 cerberus kernel: [50145.798752] ? wake_up_q+0x80/0x80 Mar 31 23:57:37 cerberus kernel: [50145.798756] usb_start_wait_urb+0x8c/0x180 Mar 31 23:57:37 cerberus kernel: [50145.798761] usb_control_msg+0xdc/0x140 Mar 31 23:57:37 cerberus kernel: [50145.798765] usbtv_set_regs+0x64/0x90 [usbtv] Mar 31 23:57:37 cerberus kernel: [50145.798769] usbtv_start_streaming+0x61/0x200 [usbtv] Mar 31 23:57:37 cerberus kernel: [50145.798777] vb2_start_streaming+0x6d/0x160 [videobuf2_core] Mar 31 23:57:37 cerberus kernel: [50145.798781] vb2_core_streamon+0xfc/0x130 [videobuf2_core] Mar 31 23:57:37 cerberus kernel: [50145.798785] vb2_streamon+0x29/0x50 [videobuf2_v4l2] Mar 31 23:57:37 cerberus kernel: [50145.798789] vb2_ioctl_streamon+0x42/0x50 [videobuf2_v4l2] Mar 31 23:57:37 cerberus kernel: [50145.798797] v4l_streamon+0x20/0x30 [videodev] Mar 31 23:57:37 cerberus kernel: [50145.798805] __video_do_ioctl+0x370/0x380 [videodev] Mar 31 23:57:37 cerberus kernel: [50145.798815] video_usercopy+0x24d/0x640 [videodev] Mar 31 23:57:37 cerberus kernel: [50145.798823] ? video_ioctl2+0x20/0x20 [videodev] Mar 31 23:57:37 cerberus kernel: [50145.798829] ? do_mmap+0x340/0x510 Mar 31 23:57:37 cerberus kernel: [50145.798836] video_ioctl2+0x15/0x20 [videodev] Mar 31 23:57:37 cerberus kernel: [50145.798843] v4l2_ioctl+0x84/0xf0 [videodev] Mar 31 23:57:37 cerberus kernel: [50145.798848] do_vfs_ioctl+0xa8/0x630 Mar 31 23:57:37 cerberus kernel: [50145.798852] SyS_ioctl+0x79/0x90 Mar 31 23:57:37 cerberus kernel: [50145.798856] do_syscall_64+0x73/0x130 Mar 31 23:57:37 cerberus kernel: [50145.798860] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 Mar 31 23:57:37 cerberus kernel: [50145.798862] RIP: 0033:0x7f2946529839 Mar 31 23:57:37 cerberus kernel: [50145.798863] RSP: 002b:00007f28ec7f7008 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Mar 31 23:57:37 cerberus kernel: [50145.798865] RAX: ffffffffffffffda RBX: 00007f28d47f4020 RCX: 00007f2946529839 Mar 31 23:57:37 cerberus kernel: [50145.798867] RDX: 00007f28ec7f7024 RSI: 0000000040045612 RDI: 0000000000000027 Mar 31 23:57:37 cerberus kernel: [50145.798868] RBP: 00007f28ec7f74b8 R08: 0000000000000000 R09: 0000000000000000 Mar 31 23:57:37 cerberus kernel: [50145.798869] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000040045612 Mar 31 23:57:37 cerberus kernel: [50145.798871] R13: 0000000040045612 R14: 00007f28ec7f8680 R15: 0000000000000027 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-94-generic 4.15.0-94.95 ProcVersionSignature: Ubuntu 4.15.0-94.95-generic 4.15.18 Uname: Linux 4.15.0-94-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.13 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed Apr 1 00:01:29 2020 HibernationDevice: RESUME=none InstallationDate: Installed on 2016-05-30 (1401 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: Supermicro X10DAi ProcEnviron: LANG=en_US.UTF-8 TERM=xterm-256color SHELL=/bin/bash XDG_RUNTIME_DIR=<set> PATH=(custom, user) ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-94-generic root=/dev/mapper/vg--root-lvol0 ro quiet splash nomdmonddf nomdmonisw vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-94-generic N/A linux-backports-modules-4.15.0-94-generic N/A linux-firmware 1.173.17 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-09-17 (562 days ago) dmi.bios.date: 01/29/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.0c dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X10DAI dmi.board.vendor: Supermicro dmi.board.version: 1.01 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.:bvr1.0c:bd01/29/2015:svnSupermicro:pnX10DAi:pvr123456789:rvnSupermicro:rnX10DAI:rvr1.01:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: SMC X10 dmi.product.name: X10DAi dmi.product.version: 123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1870014/+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
