I am unable to run that command since it's missing from the system and
any install option is compromised because of the bug (install times
out).
** Description changed:
2019-01-22T09:03:34.968028+00:00 localhost kernel: [80233.315906] INFO: task
kworker/u30:3:5705 blocked for more than 120 seconds.
2019-01-22T09:03:34.968049+00:00 localhost kernel: [80233.321444]
Tainted: P O 4.15.0-43-generic #46~16.04.1-Ubuntu
2019-01-22T09:03:34.980485+00:00 localhost kernel: [80233.327648] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
2019-01-22T09:03:34.980519+00:00 localhost kernel: [80233.333902]
kworker/u30:3 D 0 5705 2 0x80000000
2019-01-22T09:03:34.980521+00:00 localhost kernel: [80233.333909] Workqueue:
events_unbound fsnotify_mark_destroy_workfn
2019-01-22T09:03:34.980522+00:00 localhost kernel: [80233.333910] Call Trace:
2019-01-22T09:03:34.980526+00:00 localhost kernel: [80233.333914]
__schedule+0x3d6/0x8b0
2019-01-22T09:03:34.980527+00:00 localhost kernel: [80233.333918]
schedule+0x36/0x80
2019-01-22T09:03:34.980528+00:00 localhost kernel: [80233.333920]
schedule_timeout+0x1db/0x370
2019-01-22T09:03:34.980530+00:00 localhost kernel: [80233.333927] ?
__enqueue_entity+0x5c/0x60
2019-01-22T09:03:34.980531+00:00 localhost kernel: [80233.333932] ?
enqueue_entity+0x112/0x670
2019-01-22T09:03:34.980547+00:00 localhost kernel: [80233.333937]
wait_for_completion+0xb4/0x140
2019-01-22T09:03:34.980554+00:00 localhost kernel: [80233.333939] ?
wake_up_q+0x70/0x70
2019-01-22T09:03:34.980556+00:00 localhost kernel: [80233.333944]
__synchronize_srcu.part.13+0x85/0xb0
2019-01-22T09:03:34.980557+00:00 localhost kernel: [80233.333947] ?
trace_raw_output_rcu_utilization+0x50/0x50
2019-01-22T09:03:34.980558+00:00 localhost kernel: [80233.333950]
synchronize_srcu+0xd3/0xe0
2019-01-22T09:03:34.980559+00:00 localhost kernel: [80233.333956] ?
synchronize_srcu+0xd3/0xe0
2019-01-22T09:03:34.980560+00:00 localhost kernel: [80233.333962]
fsnotify_mark_destroy_workfn+0x7c/0xe0
2019-01-22T09:03:34.980568+00:00 localhost kernel: [80233.333966]
process_one_work+0x14d/0x410
2019-01-22T09:03:34.980570+00:00 localhost kernel: [80233.333968]
worker_thread+0x22b/0x460
2019-01-22T09:03:34.980571+00:00 localhost kernel: [80233.333971]
kthread+0x105/0x140
2019-01-22T09:03:34.980572+00:00 localhost kernel: [80233.333974] ?
process_one_work+0x410/0x410
2019-01-22T09:03:34.980573+00:00 localhost kernel: [80233.333976] ?
kthread_destroy_worker+0x50/0x50
2019-01-22T09:03:34.980574+00:00 localhost kernel: [80233.333979]
ret_from_fork+0x35/0x40
The taint on the kernel is from zfs module.
Also there are other processes that reach the same state (D) like dockerd,
systemd(init) ...
2019-01-22T09:03:34.949861+00:00 localhost kernel: [80233.299475] INFO: task
dockerd:2809 blocked for more than 120 seconds.
2019-01-22T09:03:34.949863+00:00 localhost kernel: [80233.303136]
Tainted: P O 4.15.0-43-generic #46~16.04.1-Ubuntu
2019-01-22T09:03:34.962084+00:00 localhost kernel: [80233.309016] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
2019-01-22T09:03:34.962114+00:00 localhost kernel: [80233.315513] dockerd
D 0 2809 1 0x00000000
2019-01-22T09:03:34.962118+00:00 localhost kernel: [80233.315516] Call Trace:
2019-01-22T09:03:34.962120+00:00 localhost kernel: [80233.315521]
__schedule+0x3d6/0x8b0
2019-01-22T09:03:34.962122+00:00 localhost kernel: [80233.315528] ?
xen_smp_send_reschedule+0x10/0x20
2019-01-22T09:03:34.962137+00:00 localhost kernel: [80233.315532]
schedule+0x36/0x80
2019-01-22T09:03:34.962139+00:00 localhost kernel: [80233.315535]
schedule_timeout+0x1db/0x370
2019-01-22T09:03:34.962140+00:00 localhost kernel: [80233.315537] ?
try_to_wake_up+0x59/0x4a0
2019-01-22T09:03:34.962164+00:00 localhost kernel: [80233.315539]
wait_for_completion+0xb4/0x140
2019-01-22T09:03:34.962168+00:00 localhost kernel: [80233.315541] ?
wake_up_q+0x70/0x70
2019-01-22T09:03:34.962170+00:00 localhost kernel: [80233.315547]
flush_work+0x129/0x1e0
2019-01-22T09:03:34.962171+00:00 localhost kernel: [80233.315552] ?
worker_detach_from_pool+0xb0/0xb0
2019-01-22T09:03:34.962186+00:00 localhost kernel: [80233.315555]
flush_delayed_work+0x3f/0x50
2019-01-22T09:03:34.962194+00:00 localhost kernel: [80233.315559]
fsnotify_wait_marks_destroyed+0x15/0x20
2019-01-22T09:03:34.962195+00:00 localhost kernel: [80233.315561]
fsnotify_destroy_group+0x48/0xd0
2019-01-22T09:03:34.962196+00:00 localhost kernel: [80233.315563]
inotify_release+0x1e/0x50
2019-01-22T09:03:34.962197+00:00 localhost kernel: [80233.315565]
__fput+0xea/0x220
2019-01-22T09:03:34.962198+00:00 localhost kernel: [80233.315567]
____fput+0xe/0x10
2019-01-22T09:03:34.962200+00:00 localhost kernel: [80233.315569]
task_work_run+0x8a/0xb0
2019-01-22T09:03:34.962202+00:00 localhost kernel: [80233.315571]
exit_to_usermode_loop+0xc4/0xd0
2019-01-22T09:03:34.962203+00:00 localhost kernel: [80233.315573]
do_syscall_64+0xf4/0x130
2019-01-22T09:03:34.962205+00:00 localhost kernel: [80233.315575]
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
The issues seems to be related to this fix:
(https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1802021).
- The issue is reproducing also on Ubuntu 16.04.5LTS with kernel version
4.15.0-43-generic.
+ The issue is reproducing also on Ubuntu 16.04.1LTS with kernel version
4.15.0-43-generic.
I am opening this bug for better traceability of the bak-ported fix.
** Description changed:
2019-01-22T09:03:34.968028+00:00 localhost kernel: [80233.315906] INFO: task
kworker/u30:3:5705 blocked for more than 120 seconds.
2019-01-22T09:03:34.968049+00:00 localhost kernel: [80233.321444]
Tainted: P O 4.15.0-43-generic #46~16.04.1-Ubuntu
2019-01-22T09:03:34.980485+00:00 localhost kernel: [80233.327648] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
2019-01-22T09:03:34.980519+00:00 localhost kernel: [80233.333902]
kworker/u30:3 D 0 5705 2 0x80000000
2019-01-22T09:03:34.980521+00:00 localhost kernel: [80233.333909] Workqueue:
events_unbound fsnotify_mark_destroy_workfn
2019-01-22T09:03:34.980522+00:00 localhost kernel: [80233.333910] Call Trace:
2019-01-22T09:03:34.980526+00:00 localhost kernel: [80233.333914]
__schedule+0x3d6/0x8b0
2019-01-22T09:03:34.980527+00:00 localhost kernel: [80233.333918]
schedule+0x36/0x80
2019-01-22T09:03:34.980528+00:00 localhost kernel: [80233.333920]
schedule_timeout+0x1db/0x370
2019-01-22T09:03:34.980530+00:00 localhost kernel: [80233.333927] ?
__enqueue_entity+0x5c/0x60
2019-01-22T09:03:34.980531+00:00 localhost kernel: [80233.333932] ?
enqueue_entity+0x112/0x670
2019-01-22T09:03:34.980547+00:00 localhost kernel: [80233.333937]
wait_for_completion+0xb4/0x140
2019-01-22T09:03:34.980554+00:00 localhost kernel: [80233.333939] ?
wake_up_q+0x70/0x70
2019-01-22T09:03:34.980556+00:00 localhost kernel: [80233.333944]
__synchronize_srcu.part.13+0x85/0xb0
2019-01-22T09:03:34.980557+00:00 localhost kernel: [80233.333947] ?
trace_raw_output_rcu_utilization+0x50/0x50
2019-01-22T09:03:34.980558+00:00 localhost kernel: [80233.333950]
synchronize_srcu+0xd3/0xe0
2019-01-22T09:03:34.980559+00:00 localhost kernel: [80233.333956] ?
synchronize_srcu+0xd3/0xe0
2019-01-22T09:03:34.980560+00:00 localhost kernel: [80233.333962]
fsnotify_mark_destroy_workfn+0x7c/0xe0
2019-01-22T09:03:34.980568+00:00 localhost kernel: [80233.333966]
process_one_work+0x14d/0x410
2019-01-22T09:03:34.980570+00:00 localhost kernel: [80233.333968]
worker_thread+0x22b/0x460
2019-01-22T09:03:34.980571+00:00 localhost kernel: [80233.333971]
kthread+0x105/0x140
2019-01-22T09:03:34.980572+00:00 localhost kernel: [80233.333974] ?
process_one_work+0x410/0x410
2019-01-22T09:03:34.980573+00:00 localhost kernel: [80233.333976] ?
kthread_destroy_worker+0x50/0x50
2019-01-22T09:03:34.980574+00:00 localhost kernel: [80233.333979]
ret_from_fork+0x35/0x40
The taint on the kernel is from zfs module.
Also there are other processes that reach the same state (D) like dockerd,
systemd(init) ...
2019-01-22T09:03:34.949861+00:00 localhost kernel: [80233.299475] INFO: task
dockerd:2809 blocked for more than 120 seconds.
2019-01-22T09:03:34.949863+00:00 localhost kernel: [80233.303136]
Tainted: P O 4.15.0-43-generic #46~16.04.1-Ubuntu
2019-01-22T09:03:34.962084+00:00 localhost kernel: [80233.309016] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
2019-01-22T09:03:34.962114+00:00 localhost kernel: [80233.315513] dockerd
D 0 2809 1 0x00000000
2019-01-22T09:03:34.962118+00:00 localhost kernel: [80233.315516] Call Trace:
2019-01-22T09:03:34.962120+00:00 localhost kernel: [80233.315521]
__schedule+0x3d6/0x8b0
2019-01-22T09:03:34.962122+00:00 localhost kernel: [80233.315528] ?
xen_smp_send_reschedule+0x10/0x20
2019-01-22T09:03:34.962137+00:00 localhost kernel: [80233.315532]
schedule+0x36/0x80
2019-01-22T09:03:34.962139+00:00 localhost kernel: [80233.315535]
schedule_timeout+0x1db/0x370
2019-01-22T09:03:34.962140+00:00 localhost kernel: [80233.315537] ?
try_to_wake_up+0x59/0x4a0
2019-01-22T09:03:34.962164+00:00 localhost kernel: [80233.315539]
wait_for_completion+0xb4/0x140
2019-01-22T09:03:34.962168+00:00 localhost kernel: [80233.315541] ?
wake_up_q+0x70/0x70
2019-01-22T09:03:34.962170+00:00 localhost kernel: [80233.315547]
flush_work+0x129/0x1e0
2019-01-22T09:03:34.962171+00:00 localhost kernel: [80233.315552] ?
worker_detach_from_pool+0xb0/0xb0
2019-01-22T09:03:34.962186+00:00 localhost kernel: [80233.315555]
flush_delayed_work+0x3f/0x50
2019-01-22T09:03:34.962194+00:00 localhost kernel: [80233.315559]
fsnotify_wait_marks_destroyed+0x15/0x20
2019-01-22T09:03:34.962195+00:00 localhost kernel: [80233.315561]
fsnotify_destroy_group+0x48/0xd0
2019-01-22T09:03:34.962196+00:00 localhost kernel: [80233.315563]
inotify_release+0x1e/0x50
2019-01-22T09:03:34.962197+00:00 localhost kernel: [80233.315565]
__fput+0xea/0x220
2019-01-22T09:03:34.962198+00:00 localhost kernel: [80233.315567]
____fput+0xe/0x10
2019-01-22T09:03:34.962200+00:00 localhost kernel: [80233.315569]
task_work_run+0x8a/0xb0
2019-01-22T09:03:34.962202+00:00 localhost kernel: [80233.315571]
exit_to_usermode_loop+0xc4/0xd0
2019-01-22T09:03:34.962203+00:00 localhost kernel: [80233.315573]
do_syscall_64+0xf4/0x130
2019-01-22T09:03:34.962205+00:00 localhost kernel: [80233.315575]
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
+ lsb_release -rd
+ Description: Ubuntu 16.04.5 LTS
+ Release: 16.04
+
The issues seems to be related to this fix:
(https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1802021).
- The issue is reproducing also on Ubuntu 16.04.1LTS with kernel version
4.15.0-43-generic.
+ The issue is reproducing also on Ubuntu 16.04.5LTS with kernel version
4.15.0-43-generic.
I am opening this bug for better traceability of the bak-ported fix.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1813881
Title:
Kworker process stuck in uninterruptible sleep
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