On 10/1/19 3:27 PM, Guruswamy Basavaiah wrote: > Hello Nikos, > Yes, issue is consistently reproducible with us, in a particular > set-up and test case. > I will get the access to set-up next week, will try to test and let > you know the results before end of next week. > That sounds great! Thanks a lot, Nikos > Guru > > On Tue, 1 Oct 2019 at 17:42, Nikos Tsironis <ntsironis@xxxxxxxxxxx> wrote: >> >> On 9/29/19 5:36 PM, Guruswamy Basavaiah wrote: >>> Hello Nikos, >>> Thanks for pointing out the lvcreate write lock. >>> >>> Guru >>> >> >> Hi Guru, >> >> I have sent a fix for this and I have Cc-ed you. >> >> Is this something you are able to consistently reproduce? If so, it >> would be great if you could also test the fix. >> >> Thanks, >> Nikos >> >>> >>> On Sat, 28 Sep 2019 at 01:03, Nikos Tsironis <ntsironis@xxxxxxxxxxx> wrote: >>>> >>>> On 9/27/19 4:19 PM, Guruswamy Basavaiah wrote: >>>>> Hello, >>>>> We have drbd partition on top of lvm partition. when node having >>>>> secondary drbd partition is coming up, large amount of data will be >>>>> synced between primary to secondary drbd partitions. >>>>> >>>>> During this time, we see the drbd Sync(Resync) stops at some point. >>>>> After 120 seconds we see hung-task-timeout warnings in the logs.(see >>>>> at the end of this email) >>>>> >>>>> If i increase the cow_count semaphore value from 2048 to 8192 or >>>>> remove the below patch, drbd sync works seamlessly. >>>>> >>>>> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/patch/?id=721b1d98fb517ae99ab3b757021cf81db41e67be >>>>> >>>>> I am not familiar with dm code, from hung task back traces what i >>>>> understand is, when thread is trying to queue work to kcopyd, holding >>>>> "&_origins_lock" and blocked on cow_count lock, >>>>> jobs from kcopyd is trying to queue work to same kcopyd and blocked on >>>>> "&_origins_lock" and dead lock. >>>>> >>>> >>>> Hello Guruswamy, >>>> >>>> I am Cc-ing the maintainers, so they can be in the loop. >>>> >>>> I examined the attached logs and I believe the following happens: >>>> >>>> 1. DRBD issues a number of writes to the snapshot origin device. These >>>> writes cause COW, which is performed by kcopyd. >>>> >>>> 2. At some point DRBD reaches the cow_count semaphore limit (2048) and >>>> blocks in down(&s->cow_count), holding a read lock on _origins_lock. >>>> >>>> 3. Someone tries to create a new snapshot. This involves taking a write >>>> lock on _origins_lock, which blocks because DRBD at step (2) already >>>> holds a read lock on it. That's the blocked lvcreate at the end of >>>> the trace. >>>> >>>> 4. A COW operation, issued by step (1), completes and kcopyd runs >>>> dm-snapshot's completion callback, which tries to take a read lock on >>>> _origins_lock, before signaling the cow_count semaphore. This read >>>> lock blocks, the semaphore is never signaled and we have the deadlock >>>> you experienced. >>>> >>>> At first glance this seemed strange, because DRBD at step (2) holds a >>>> read lock on _origins_lock, so taking another read lock should be >>>> possible. >>>> >>>> But, if I am not missing something, the read-write semaphore >>>> implementation gives priority to writers, meaning that as soon as a >>>> writer tries to enter the critical section, the lvcreate in our case, no >>>> readers will be allowed in until all writers have completed their work. >>>> >>>> That's what I believe is causing the deadlock you are experiencing. >>>> >>>> I will send a patch fixing this and I will let you now. >>>> >>>> Thanks, >>>> Nikos >>>> >>>>> Below is the hung task back traces. >>>>> Sep 24 12:08:48.974658 err CFPU-1 kernel: [ 279.991760] INFO: task >>>>> kworker/1:1:170 blocked for more than 120 seconds. >>>>> Sep 24 12:08:48.974658 err CFPU-1 kernel: [ 279.998569] >>>>> Tainted: P O 4.4.184-octeon-distro.git-v2.96-4-rc-wnd #1 >>>>> Sep 24 12:08:48.974658 err CFPU-1 kernel: [ 280.006593] "echo 0 > >>>>> /proc/sys/kernel/hung_task_timeout_secs" disables this message. >>>>> Sep 24 12:08:48.974658 info CFPU-1 kernel: [ 280.014435] kworker/1:1 >>>>> D ffffffff80e1db78 0 170 2 0x00100000 >>>>> Sep 24 12:08:48.974658 info CFPU-1 kernel: [ 280.014482] Workqueue: >>>>> kcopyd do_work [dm_mod] >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014487] Stack : >>>>> 0000000000000000 0000000000000001 0003000300000000 80000007fde8bac8 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014487] >>>>> 80000007fe759b00 0000000000000002 ffffffffc0285294 80000007f8d1ca00 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014487] >>>>> ffffffffc027eda8 0000000000000001 ffffffff80b30000 0000000000000100 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014487] >>>>> 8000000784c098c8 ffffffff80e1db78 80000007fe759b00 ffffffff80e204b8 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014487] >>>>> 8000000788ef79c0 800000078505ba70 80000007fe759b00 00000001852b4620 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014487] >>>>> ffffffffc0280000 80000007852b4620 80000007eebf5758 ffffffffc027edec >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014487] >>>>> 0000000000000000 80000007852b4620 80000007835d8e80 ffffffffc027f38c >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014487] >>>>> 8000000787ac0580 0000000000000001 80000007f8d1ca60 8000000785aeb080 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014487] >>>>> 0000000000000000 0000000000000000 0000000000000200 ffffffffc0282488 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014487] >>>>> 0000000000000200 80000007f8d1ca00 ffffffffc0280000 ffffffffc027db90 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014487] ... >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014558] Call Trace: >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014570] >>>>> [<ffffffff80e1d4a8>] __schedule+0x3c0/0xa58 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014580] >>>>> [<ffffffff80e1db78>] schedule+0x38/0x98 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014590] >>>>> [<ffffffff80e204b8>] __down_read+0xa8/0xf0 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014609] >>>>> [<ffffffffc027edec>] do_origin.isra.13+0x44/0x110 [dm_snapshot] >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014625] >>>>> [<ffffffffc027f38c>] pending_complete+0x1ac/0x378 [dm_snapshot] >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014642] >>>>> [<ffffffffc0282488>] persistent_commit_exception+0x140/0x218 >>>>> [dm_snapshot] >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014659] >>>>> [<ffffffffc027db90>] copy_callback+0x108/0x1a0 [dm_snapshot] >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014688] >>>>> [<ffffffffc01eb6a4>] run_complete_job+0x8c/0x148 [dm_mod] >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014724] >>>>> [<ffffffffc01eaae8>] process_jobs+0xc8/0x1e0 [dm_mod] >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014759] >>>>> [<ffffffffc01eb1e0>] do_work+0xb8/0x110 [dm_mod] >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014783] >>>>> [<ffffffff808b18e0>] process_one_work+0x190/0x480 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014791] >>>>> [<ffffffff808b1d18>] worker_thread+0x148/0x580 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014801] >>>>> [<ffffffff808b813c>] kthread+0xdc/0xf8 >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014811] >>>>> [<ffffffff8086bf28>] ret_from_kernel_thread+0x14/0x1c >>>>> Sep 24 12:08:48.974658 warn CFPU-1 kernel: [ 280.014817] >>>>> Sep 24 12:08:48.974658 err CFPU-1 kernel: [ 280.015046] INFO: task >>>>> drbd_r_r1:7772 blocked for more than 120 seconds. >>>>> Sep 24 12:08:48.974658 err CFPU-1 kernel: [ 280.021766] >>>>> Tainted: P O 4.4.184-octeon-distro.git-v2.96-4-rc-wnd #1 >>>>> Sep 24 12:08:48.974658 err CFPU-1 kernel: [ 280.029781] "echo 0 > >>>>> /proc/sys/kernel/hung_task_timeout_secs" disables this message. >>>>> Sep 24 12:08:48.982578 info CFPU-1 kernel: [ 280.037637] drbd_r_r1 >>>>> D ffffffff80e1db78 0 7772 2 0x00100002 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037648] Stack : >>>>> 00000000000207e8 ffffffff80b35530 8000000788e77860 8000000788e77860 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037648] >>>>> 7fffffffffffffff 80000007f8d1cb28 8000000788e0a880 0000000000000002 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037648] >>>>> ffffffff80e20000 80000007f9306480 00000000000207e8 ffffffff808dfe58 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037648] >>>>> 80000007eebf5168 ffffffff80e1db78 0000000002411200 ffffffff80e208d8 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037648] >>>>> 80000007eab5b440 ffffffff8097b25c 00000000000207a0 ffffffff808dfe58 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037648] >>>>> 80000007f8d1ca00 ffffffff809ce014 80000007f9306000 0000000002011200 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037648] >>>>> 7fffffffffffffff 80000007f8d1cb28 8000000788e0a880 0000000000000002 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037648] >>>>> ffffffff80e20000 ffffffff80e1f8d8 80000007f8d1cb30 80000007f8d1cb30 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037648] >>>>> 8000000788e0a880 00ffffff808db9e8 0000000000000000 80000007f8d1cb28 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037648] >>>>> 80000007f9306480 ffffffffc02834d0 ffffffff808e0000 ffffffff808dfba4 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037648] ... >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037774] Call Trace: >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037797] >>>>> [<ffffffff80e1d4a8>] __schedule+0x3c0/0xa58 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037849] >>>>> [<ffffffff80e1db78>] schedule+0x38/0x98 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037865] >>>>> [<ffffffff80e208d8>] schedule_timeout+0x240/0x2a0 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037874] >>>>> [<ffffffff80e1f8d8>] __down+0x90/0xd8 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037884] >>>>> [<ffffffff808dfba4>] down+0x54/0x70 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037901] >>>>> [<ffffffffc027da48>] start_copy+0x98/0xd8 [dm_snapshot] >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037934] >>>>> [<ffffffffc027e7d4>] __origin_write+0x184/0x2c0 [dm_snapshot] >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.037968] >>>>> [<ffffffffc027ee4c>] do_origin.isra.13+0xa4/0x110 [dm_snapshot] >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.038016] >>>>> [<ffffffffc01dc2c0>] __map_bio+0xb0/0x258 [dm_mod] >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.038071] >>>>> [<ffffffffc01deb94>] __split_and_process_bio+0x274/0x488 [dm_mod] >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.038126] >>>>> [<ffffffffc01dee3c>] dm_make_request+0x94/0x128 [dm_mod] >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.038174] >>>>> [<ffffffff80b3347c>] generic_make_request+0x114/0x290 >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.038238] >>>>> [<ffffffffc0511090>] drbd_submit_peer_request+0x258/0x618 [drbd] >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.038337] >>>>> [<ffffffffc05121f8>] receive_RSDataReply+0x3b8/0x770 [drbd] >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.038426] >>>>> [<ffffffffc0515b30>] drbd_receiver+0x210/0x420 [drbd] >>>>> Sep 24 12:08:48.983234 warn CFPU-1 kernel: [ 280.038526] >>>>> [<ffffffffc0523a3c>] drbd_thread_setup+0x74/0x1a8 [drbd] >>>>> Sep 24 12:08:48.985184 warn CFPU-1 kernel: [ 280.038588] >>>>> [<ffffffff808b813c>] kthread+0xdc/0xf8 >>>>> Sep 24 12:08:48.985184 warn CFPU-1 kernel: [ 280.038604] >>>>> [<ffffffff8086bf28>] ret_from_kernel_thread+0x14/0x1c >>>>> Sep 24 12:08:48.985184 warn CFPU-1 kernel: [ 280.038612] >>>>> Sep 24 12:08:48.985184 err CFPU-1 kernel: [ 280.038629] INFO: task >>>>> drbd_r_r5:7910 blocked for more than 120 seconds. >>>>> Sep 24 12:08:48.990218 err CFPU-1 kernel: [ 280.045351] >>>>> Tainted: P O 4.4.184-octeon-distro.git-v2.96-4-rc-wnd #1 >>>>> Sep 24 12:08:48.998215 err CFPU-1 kernel: [ 280.053372] "echo 0 > >>>>> /proc/sys/kernel/hung_task_timeout_secs" disables this message. >>>>> Sep 24 12:08:49.006141 info CFPU-1 kernel: [ 280.061248] drbd_r_r5 >>>>> D ffffffff80e1db78 0 7910 2 0x00100002 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061257] Stack : >>>>> 0000000000000001 ffffffff80b35530 8000000788ef7950 8000000788ef7950 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061257] >>>>> 8000000787936c00 0000000000000002 ffffffffc0285294 00000000000049ba >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061257] >>>>> 0000000000000001 00000000000049ba 0000000000000001 ffffffff80b2aa90 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061257] >>>>> 0000000000000001 ffffffff80e1db78 8000000787936c00 ffffffff80e204b8 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061257] >>>>> 800000078785b9c0 80000007fde8bb30 8000000787936c00 0000000100000000 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061257] >>>>> ffffffffc0280000 80000007eff43920 8000000788ca0198 ffffffffc027edec >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061257] >>>>> 80000007eff43900 c000000001f5b080 80000007eff43920 ffffffffc01dc2c0 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061257] >>>>> 80000007eb29bd80 0000000000000000 0000000002400000 80000007eff42900 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061257] >>>>> 00000000000049ba ffffffff80b2abec 8000000788ef7a50 8000000788ef7a50 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061257] >>>>> ffffffffc01dbad8 c000000001f5b080 c000000001f5b080 80000007eff43900 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061257] ... >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061375] Call Trace: >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061392] >>>>> [<ffffffff80e1d4a8>] __schedule+0x3c0/0xa58 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061435] >>>>> [<ffffffff80e1db78>] schedule+0x38/0x98 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061445] >>>>> [<ffffffff80e204b8>] __down_read+0xa8/0xf0 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061463] >>>>> [<ffffffffc027edec>] do_origin.isra.13+0x44/0x110 [dm_snapshot] >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061509] >>>>> [<ffffffffc01dc2c0>] __map_bio+0xb0/0x258 [dm_mod] >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061563] >>>>> [<ffffffffc01deb94>] __split_and_process_bio+0x274/0x488 [dm_mod] >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061598] >>>>> [<ffffffffc01dee3c>] dm_make_request+0x94/0x128 [dm_mod] >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061624] >>>>> [<ffffffff80b3347c>] generic_make_request+0x114/0x290 >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061674] >>>>> [<ffffffffc0511090>] drbd_submit_peer_request+0x258/0x618 [drbd] >>>>> Sep 24 12:08:49.006513 warn CFPU-1 kernel: [ 280.061739] >>>>> [<ffffffffc0512c78>] receive_Data+0x6c8/0x1368 [drbd] >>>>> Sep 24 12:08:49.007987 warn CFPU-1 kernel: [ 280.061816] >>>>> [<ffffffffc0515b30>] drbd_receiver+0x210/0x420 [drbd] >>>>> Sep 24 12:08:49.007987 warn CFPU-1 kernel: [ 280.061882] >>>>> [<ffffffffc0523a3c>] drbd_thread_setup+0x74/0x1a8 [drbd] >>>>> Sep 24 12:08:49.007987 warn CFPU-1 kernel: [ 280.061922] >>>>> [<ffffffff808b813c>] kthread+0xdc/0xf8 >>>>> Sep 24 12:08:49.007987 warn CFPU-1 kernel: [ 280.061931] >>>>> [<ffffffff8086bf28>] ret_from_kernel_thread+0x14/0x1c >>>>> Sep 24 12:08:49.007987 warn CFPU-1 kernel: [ 280.061937] >>>>> Sep 24 12:08:49.007987 err CFPU-1 kernel: [ 280.061948] INFO: task >>>>> drbd_r_r6:7991 blocked for more than 120 seconds. >>>>> Sep 24 12:08:49.013584 err CFPU-1 kernel: [ 280.068669] >>>>> Tainted: P O 4.4.184-octeon-distro.git-v2.96-4-rc-wnd #1 >>>>> Sep 24 12:08:49.021541 err CFPU-1 kernel: [ 280.076683] "echo 0 > >>>>> /proc/sys/kernel/hung_task_timeout_secs" disables this message. >>>>> Sep 24 12:08:49.029370 info CFPU-1 kernel: [ 280.084523] drbd_r_r6 >>>>> D ffffffff80e1db78 0 7991 2 0x00100002 >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084532] Stack : >>>>> 0000000000000001 ffffffff80b35530 800000078785b950 800000078785b950 >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084532] >>>>> 8000000787b79b00 0000000000000002 ffffffffc0285294 000000000000049a >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084532] >>>>> 0000000000000001 000000000000049a 0000000000000001 ffffffff80b2aa90 >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084532] >>>>> 0000000000000001 ffffffff80e1db78 8000000787b79b00 ffffffff80e204b8 >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084532] >>>>> 800000078465b940 8000000788ef79c0 8000000787b79b00 0000000100000000 >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084532] >>>>> ffffffffc0280000 80000007e90d6c20 80000007878cf2d8 ffffffffc027edec >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084532] >>>>> 80000007e90d6c00 c000000001fcc080 80000007e90d6c20 ffffffffc01dc2c0 >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084532] >>>>> 80000007f93fd900 0000000000000000 0000000002400000 80000007e90d6a00 >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084532] >>>>> 000000000000049a ffffffff80b2abec 800000078785ba50 800000078785ba50 >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084532] >>>>> ffffffffc01dbad8 c000000001fcc080 c000000001fcc080 80000007e90d6c00 >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084532] ... >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084610] Call Trace: >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084621] >>>>> [<ffffffff80e1d4a8>] __schedule+0x3c0/0xa58 >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084631] >>>>> [<ffffffff80e1db78>] schedule+0x38/0x98 >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084641] >>>>> [<ffffffff80e204b8>] __down_read+0xa8/0xf0 >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084659] >>>>> [<ffffffffc027edec>] do_origin.isra.13+0x44/0x110 [dm_snapshot] >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084696] >>>>> [<ffffffffc01dc2c0>] __map_bio+0xb0/0x258 [dm_mod] >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084729] >>>>> [<ffffffffc01deb94>] __split_and_process_bio+0x274/0x488 [dm_mod] >>>>> Sep 24 12:08:49.029567 warn CFPU-1 kernel: [ 280.084777] >>>>> [<ffffffffc01dee3c>] dm_make_request+0x94/0x128 [dm_mod] >>>>> Sep 24 12:08:49.031000 warn CFPU-1 kernel: [ 280.084810] >>>>> [<ffffffff80b3347c>] generic_make_request+0x114/0x290 >>>>> Sep 24 12:08:49.031000 warn CFPU-1 kernel: [ 280.084863] >>>>> [<ffffffffc0511090>] drbd_submit_peer_request+0x258/0x618 [drbd] >>>>> Sep 24 12:08:49.031000 warn CFPU-1 kernel: [ 280.084928] >>>>> [<ffffffffc0512c78>] receive_Data+0x6c8/0x1368 [drbd] >>>>> Sep 24 12:08:49.031000 warn CFPU-1 kernel: [ 280.084992] >>>>> [<ffffffffc0515b30>] drbd_receiver+0x210/0x420 [drbd] >>>>> Sep 24 12:08:49.031000 warn CFPU-1 kernel: [ 280.085057] >>>>> [<ffffffffc0523a3c>] drbd_thread_setup+0x74/0x1a8 [drbd] >>>>> Sep 24 12:08:49.031000 warn CFPU-1 kernel: [ 280.085097] >>>>> [<ffffffff808b813c>] kthread+0xdc/0xf8 >>>>> Sep 24 12:08:49.031000 warn CFPU-1 kernel: [ 280.085106] >>>>> [<ffffffff8086bf28>] ret_from_kernel_thread+0x14/0x1c >>>>> Sep 24 12:08:49.031000 warn CFPU-1 kernel: [ 280.085112] >>>>> Sep 24 12:08:49.031000 err CFPU-1 kernel: [ 280.085121] INFO: task >>>>> drbd_r_r7:8046 blocked for more than 120 seconds. >>>>> Sep 24 12:08:49.036834 err CFPU-1 kernel: [ 280.091854] >>>>> Tainted: P O 4.4.184-octeon-distro.git-v2.96-4-rc-wnd #1 >>>>> Sep 24 12:08:49.044747 err CFPU-1 kernel: [ 280.099876] "echo 0 > >>>>> /proc/sys/kernel/hung_task_timeout_secs" disables this message. >>>>> Sep 24 12:08:49.056612 info CFPU-1 kernel: [ 280.107739] drbd_r_r7 >>>>> D ffffffff80e1db78 0 8046 2 0x00100000 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107749] Stack : >>>>> 0000000000000000 0000000000000010 ffffffff811b3a80 0000000000000000 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107749] >>>>> 7fffffffffffffff 7fffffffffffffff 0000000000000000 0000000000000002 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107749] >>>>> 8000000788fcfa98 0000000000000000 ffffffffc053baa8 ffffffff80be4360 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107749] >>>>> ffffffffc0550000 ffffffff80e1db78 ffffffff81070660 ffffffff80e208d8 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107749] >>>>> 8000000797a43600 ffffffff808c4878 80000007ff2f4100 0000000000000000 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107749] >>>>> 80000007f93fdb40 0000000000000000 80000007ff007000 ffffffff81070660 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107749] >>>>> 8000000788fcfa90 7fffffffffffffff 0000000000000000 0000000000000002 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107749] >>>>> 8000000788fcfa98 ffffffff80e1e8a0 0000000100000000 8000000797a42880 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107749] >>>>> ffffffff808c4b60 8000000788fcfaa0 8000000788fcfaa0 ffffffffc053baa8 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107749] >>>>> ffffffff80be4360 ffffffff81cb4540 ffffffff81cb0000 80000007f93fdb40 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107749] ... >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107821] Call Trace: >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107833] >>>>> [<ffffffff80e1d4a8>] __schedule+0x3c0/0xa58 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107842] >>>>> [<ffffffff80e1db78>] schedule+0x38/0x98 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107850] >>>>> [<ffffffff80e208d8>] schedule_timeout+0x240/0x2a0 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107859] >>>>> [<ffffffff80e1e8a0>] wait_for_common+0xd8/0x1b0 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107873] >>>>> [<ffffffff808acc20>] call_usermodehelper_exec+0x110/0x188 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107932] >>>>> [<ffffffffc053da3c>] drbd_khelper+0x1c4/0x310 [drbd] >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.107998] >>>>> [<ffffffffc0500a14>] drbd_start_resync+0x534/0x968 [drbd] >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.108060] >>>>> [<ffffffffc05037dc>] receive_sync_uuid+0x2d4/0x5a0 [drbd] >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.108124] >>>>> [<ffffffffc0515b30>] drbd_receiver+0x210/0x420 [drbd] >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.108189] >>>>> [<ffffffffc0523a3c>] drbd_thread_setup+0x74/0x1a8 [drbd] >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.108229] >>>>> [<ffffffff808b813c>] kthread+0xdc/0xf8 >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.108239] >>>>> [<ffffffff8086bf28>] ret_from_kernel_thread+0x14/0x1c >>>>> Sep 24 12:08:49.056612 warn CFPU-1 kernel: [ 280.108245] >>>>> Sep 24 12:08:49.056612 err CFPU-1 kernel: [ 280.108471] INFO: task >>>>> drbd_r_r8:8120 blocked for more than 120 seconds. >>>>> Sep 24 12:08:49.060085 err CFPU-1 kernel: [ 280.115194] >>>>> Tainted: P O 4.4.184-octeon-distro.git-v2.96-4-rc-wnd #1 >>>>> Sep 24 12:08:49.075924 err CFPU-1 kernel: [ 280.123218] "echo 0 > >>>>> /proc/sys/kernel/hung_task_timeout_secs" disables this message. >>>>> Sep 24 12:08:49.075924 info CFPU-1 kernel: [ 280.131070] drbd_r_r8 >>>>> D ffffffff80e1db78 0 8120 2 0x00100002 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131083] Stack : >>>>> 0000000000000000 0000000000000010 ffffffff811b3a80 0000000000000000 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131083] >>>>> 7fffffffffffffff 7fffffffffffffff 0000000000000000 0000000000000002 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131083] >>>>> 80000007851d3a98 0000000000000000 ffffffffc053baa8 ffffffff80be4360 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131083] >>>>> ffffffffc0550000 ffffffff80e1db78 ffffffff81070660 ffffffff80e208d8 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131083] >>>>> 80000007f96f6c00 ffffffff808c4878 80000007ff2f4100 0000000000000000 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131083] >>>>> 80000007ee99f360 0000000000000000 80000007ff007000 ffffffff81070660 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131083] >>>>> 80000007851d3a90 7fffffffffffffff 0000000000000000 0000000000000002 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131083] >>>>> 80000007851d3a98 ffffffff80e1e8a0 0000000100000000 8000000784ba3600 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131083] >>>>> ffffffff808c4b60 80000007851d3aa0 80000007851d3aa0 ffffffffc053baa8 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131083] >>>>> ffffffff80be4360 ffffffff81cb4540 ffffffff81cb0000 80000007ee99f360 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131083] ... >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131162] Call Trace: >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131174] >>>>> [<ffffffff80e1d4a8>] __schedule+0x3c0/0xa58 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131183] >>>>> [<ffffffff80e1db78>] schedule+0x38/0x98 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131195] >>>>> [<ffffffff80e208d8>] schedule_timeout+0x240/0x2a0 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131204] >>>>> [<ffffffff80e1e8a0>] wait_for_common+0xd8/0x1b0 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131216] >>>>> [<ffffffff808acc20>] call_usermodehelper_exec+0x110/0x188 >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131274] >>>>> [<ffffffffc053da3c>] drbd_khelper+0x1c4/0x310 [drbd] >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131341] >>>>> [<ffffffffc0500a14>] drbd_start_resync+0x534/0x968 [drbd] >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131403] >>>>> [<ffffffffc05037dc>] receive_sync_uuid+0x2d4/0x5a0 [drbd] >>>>> Sep 24 12:08:49.076256 warn CFPU-1 kernel: [ 280.131482] >>>>> [<ffffffffc0515b30>] drbd_receiver+0x210/0x420 [drbd] >>>>> Sep 24 12:08:49.077857 warn CFPU-1 kernel: [ 280.131557] >>>>> [<ffffffffc0523a3c>] drbd_thread_setup+0x74/0x1a8 [drbd] >>>>> Sep 24 12:08:49.077857 warn CFPU-1 kernel: [ 280.131597] >>>>> [<ffffffff808b813c>] kthread+0xdc/0xf8 >>>>> Sep 24 12:08:49.077857 warn CFPU-1 kernel: [ 280.131606] >>>>> [<ffffffff8086bf28>] ret_from_kernel_thread+0x14/0x1c >>>>> Sep 24 12:08:49.077857 warn CFPU-1 kernel: [ 280.131612] >>>>> Sep 24 12:08:49.077857 err CFPU-1 kernel: [ 280.131641] INFO: task >>>>> drbd_r_r9:8173 blocked for more than 120 seconds. >>>>> Sep 24 12:08:49.091245 err CFPU-1 kernel: [ 280.138358] >>>>> Tainted: P O 4.4.184-octeon-distro.git-v2.96-4-rc-wnd #1 >>>>> Sep 24 12:08:49.091245 err CFPU-1 kernel: [ 280.146373] "echo 0 > >>>>> /proc/sys/kernel/hung_task_timeout_secs" disables this message. >>>>> Sep 24 12:08:49.099067 info CFPU-1 kernel: [ 280.154219] drbd_r_r9 >>>>> D ffffffff80e1db78 0 8173 2 0x00100002 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154229] Stack : >>>>> 0000000000000000 0000000000000010 ffffffff811b3a80 0000000000000000 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154229] >>>>> 7fffffffffffffff 7fffffffffffffff 0000000000000000 0000000000000002 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154229] >>>>> 8000000783c9fa98 0000000000000000 ffffffffc053baa8 ffffffff80be4360 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154229] >>>>> ffffffffc0550000 ffffffff80e1db78 ffffffff81070660 ffffffff80e208d8 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154229] >>>>> 8000000797a45100 ffffffff808c4878 80000007ff2f4100 0000000000000000 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154229] >>>>> 8000000788ca9d20 0000000000000000 80000007ff007000 ffffffff81070660 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154229] >>>>> 8000000783c9fa90 7fffffffffffffff 0000000000000000 0000000000000002 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154229] >>>>> 8000000783c9fa98 ffffffff80e1e8a0 0000000100000000 80000007843d4380 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154229] >>>>> ffffffff808c4b60 8000000783c9faa0 8000000783c9faa0 ffffffffc053baa8 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154229] >>>>> ffffffff80be4360 ffffffff81cb4540 ffffffff81cb0000 8000000788ca9d20 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154229] ... >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154305] Call Trace: >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154315] >>>>> [<ffffffff80e1d4a8>] __schedule+0x3c0/0xa58 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154325] >>>>> [<ffffffff80e1db78>] schedule+0x38/0x98 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154333] >>>>> [<ffffffff80e208d8>] schedule_timeout+0x240/0x2a0 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154342] >>>>> [<ffffffff80e1e8a0>] wait_for_common+0xd8/0x1b0 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154354] >>>>> [<ffffffff808acc20>] call_usermodehelper_exec+0x110/0x188 >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154410] >>>>> [<ffffffffc053da3c>] drbd_khelper+0x1c4/0x310 [drbd] >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154475] >>>>> [<ffffffffc0500a14>] drbd_start_resync+0x534/0x968 [drbd] >>>>> Sep 24 12:08:49.099314 warn CFPU-1 kernel: [ 280.154540] >>>>> [<ffffffffc05037dc>] receive_sync_uuid+0x2d4/0x5a0 [drbd] >>>>> Sep 24 12:08:49.100714 warn CFPU-1 kernel: [ 280.154612] >>>>> [<ffffffffc0515b30>] drbd_receiver+0x210/0x420 [drbd] >>>>> Sep 24 12:08:49.100714 warn CFPU-1 kernel: [ 280.154678] >>>>> [<ffffffffc0523a3c>] drbd_thread_setup+0x74/0x1a8 [drbd] >>>>> Sep 24 12:08:49.100714 warn CFPU-1 kernel: [ 280.154717] >>>>> [<ffffffff808b813c>] kthread+0xdc/0xf8 >>>>> Sep 24 12:08:49.100714 warn CFPU-1 kernel: [ 280.154726] >>>>> [<ffffffff8086bf28>] ret_from_kernel_thread+0x14/0x1c >>>>> Sep 24 12:08:49.100714 warn CFPU-1 kernel: [ 280.154732] >>>>> Sep 24 12:08:49.100714 err CFPU-1 kernel: [ 280.154742] INFO: task >>>>> drbd_r_r10:8254 blocked for more than 120 seconds. >>>>> Sep 24 12:08:49.106539 err CFPU-1 kernel: [ 280.161554] >>>>> Tainted: P O 4.4.184-octeon-distro.git-v2.96-4-rc-wnd #1 >>>>> Sep 24 12:08:49.114430 err CFPU-1 kernel: [ 280.169569] "echo 0 > >>>>> /proc/sys/kernel/hung_task_timeout_secs" disables this message. >>>>> Sep 24 12:08:49.129749 info CFPU-1 kernel: [ 280.177434] drbd_r_r10 >>>>> D ffffffff80e1db78 0 8254 2 0x00100002 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177445] Stack : >>>>> 0000000000000000 0000000000000010 ffffffff811b3a80 0000000000000000 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177445] >>>>> 7fffffffffffffff 7fffffffffffffff 0000000000000000 0000000000000002 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177445] >>>>> 80000007846efa98 0000000000000000 ffffffffc053baa8 ffffffff80be4360 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177445] >>>>> ffffffffc0550000 ffffffff80e1db78 ffffffff81070660 ffffffff80e208d8 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177445] >>>>> 8000000784893600 ffffffff808c4878 80000007ff2f4100 0000000000000000 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177445] >>>>> 80000007e9498180 0000000000000000 80000007ff007000 ffffffff81070660 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177445] >>>>> 80000007846efa90 7fffffffffffffff 0000000000000000 0000000000000002 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177445] >>>>> 80000007846efa98 ffffffff80e1e8a0 0000000100000000 8000000783cf8d80 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177445] >>>>> ffffffff808c4b60 80000007846efaa0 80000007846efaa0 ffffffffc053baa8 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177445] >>>>> ffffffff80be4360 ffffffff81cb4540 ffffffff81cb0000 80000007e9498180 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177445] ... >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177517] Call Trace: >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177529] >>>>> [<ffffffff80e1d4a8>] __schedule+0x3c0/0xa58 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177539] >>>>> [<ffffffff80e1db78>] schedule+0x38/0x98 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177547] >>>>> [<ffffffff80e208d8>] schedule_timeout+0x240/0x2a0 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177556] >>>>> [<ffffffff80e1e8a0>] wait_for_common+0xd8/0x1b0 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177569] >>>>> [<ffffffff808acc20>] call_usermodehelper_exec+0x110/0x188 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177631] >>>>> [<ffffffffc053da3c>] drbd_khelper+0x1c4/0x310 [drbd] >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177697] >>>>> [<ffffffffc0500a14>] drbd_start_resync+0x534/0x968 [drbd] >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177760] >>>>> [<ffffffffc05037dc>] receive_sync_uuid+0x2d4/0x5a0 [drbd] >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177823] >>>>> [<ffffffffc0515b30>] drbd_receiver+0x210/0x420 [drbd] >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177888] >>>>> [<ffffffffc0523a3c>] drbd_thread_setup+0x74/0x1a8 [drbd] >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177928] >>>>> [<ffffffff808b813c>] kthread+0xdc/0xf8 >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177938] >>>>> [<ffffffff8086bf28>] ret_from_kernel_thread+0x14/0x1c >>>>> Sep 24 12:08:49.129749 warn CFPU-1 kernel: [ 280.177944] >>>>> Sep 24 12:08:49.129749 err CFPU-1 kernel: [ 280.177960] INFO: task >>>>> drbd_r_r11:8328 blocked for more than 120 seconds. >>>>> Sep 24 12:08:49.129749 err CFPU-1 kernel: [ 280.184775] >>>>> Tainted: P O 4.4.184-octeon-distro.git-v2.96-4-rc-wnd #1 >>>>> Sep 24 12:08:49.137674 err CFPU-1 kernel: [ 280.192793] "echo 0 > >>>>> /proc/sys/kernel/hung_task_timeout_secs" disables this message. >>>>> Sep 24 12:08:49.152797 info CFPU-1 kernel: [ 280.200644] drbd_r_r11 >>>>> D ffffffff80e1db78 0 8328 2 0x00100002 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200654] Stack : >>>>> 0000000000000000 0000000000000010 ffffffff811b3a80 0000000000000000 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200654] >>>>> 7fffffffffffffff 7fffffffffffffff 0000000000000000 0000000000000002 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200654] >>>>> 8000000783c5fa98 0000000000000000 ffffffffc053baa8 ffffffff80be4360 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200654] >>>>> ffffffffc0550000 ffffffff80e1db78 ffffffff81070660 ffffffff80e208d8 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200654] >>>>> 8000000787935100 ffffffff808c4878 80000007ff2f4100 0000000000000000 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200654] >>>>> 80000007eebd25a0 0000000000000000 80000007ff007000 ffffffff81070660 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200654] >>>>> 8000000783c5fa90 7fffffffffffffff 0000000000000000 0000000000000002 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200654] >>>>> 8000000783c5fa98 ffffffff80e1e8a0 0000000100000000 800000078371de80 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200654] >>>>> ffffffff808c4b60 8000000783c5faa0 8000000783c5faa0 ffffffffc053baa8 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200654] >>>>> ffffffff80be4360 ffffffff81cb4540 ffffffff81cb0000 80000007eebd25a0 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200654] ... >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200726] Call Trace: >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200739] >>>>> [<ffffffff80e1d4a8>] __schedule+0x3c0/0xa58 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200749] >>>>> [<ffffffff80e1db78>] schedule+0x38/0x98 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200757] >>>>> [<ffffffff80e208d8>] schedule_timeout+0x240/0x2a0 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200766] >>>>> [<ffffffff80e1e8a0>] wait_for_common+0xd8/0x1b0 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200778] >>>>> [<ffffffff808acc20>] call_usermodehelper_exec+0x110/0x188 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200840] >>>>> [<ffffffffc053da3c>] drbd_khelper+0x1c4/0x310 [drbd] >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200906] >>>>> [<ffffffffc0500a14>] drbd_start_resync+0x534/0x968 [drbd] >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.200969] >>>>> [<ffffffffc05037dc>] receive_sync_uuid+0x2d4/0x5a0 [drbd] >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.201032] >>>>> [<ffffffffc0515b30>] drbd_receiver+0x210/0x420 [drbd] >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.201097] >>>>> [<ffffffffc0523a3c>] drbd_thread_setup+0x74/0x1a8 [drbd] >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.201137] >>>>> [<ffffffff808b813c>] kthread+0xdc/0xf8 >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.201147] >>>>> [<ffffffff8086bf28>] ret_from_kernel_thread+0x14/0x1c >>>>> Sep 24 12:08:49.152797 warn CFPU-1 kernel: [ 280.201153] >>>>> Sep 24 12:08:49.152797 err CFPU-1 kernel: [ 280.201183] INFO: task >>>>> lvcreate:8585 blocked for more than 120 seconds. >>>>> Sep 24 12:08:49.152797 err CFPU-1 kernel: [ 280.207823] >>>>> Tainted: P O 4.4.184-octeon-distro.git-v2.96-4-rc-wnd #1 >>>>> Sep 24 12:08:49.160715 err CFPU-1 kernel: [ 280.215860] "echo 0 > >>>>> /proc/sys/kernel/hung_task_timeout_secs" disables this message. >>>>> Sep 24 12:08:49.168570 info CFPU-1 kernel: [ 280.223704] lvcreate >>>>> D ffffffff80e1db78 0 8585 8582 0x00100000 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223719] Stack : >>>>> ffffffff809ce420 ffffffffc027e170 80000007ea05c720 ffffffff809ce014 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223719] >>>>> ffffffffc0285294 ffffffffc0285290 8000000797bdb600 0000000000000002 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223719] >>>>> ffffffffc02834d0 ffffffffc0280000 ffffffff809ce420 ffffffffc027e170 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223719] >>>>> 80000007f9275d80 ffffffff80e1db78 ffffffffc0285294 ffffffff80e20584 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223719] >>>>> 80000007fde8bb30 ffffffffc0285298 8000000797bdb600 0000000000000000 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223719] >>>>> c00000000205a080 0000000000000000 c00000000205a080 80000007ea05c600 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223719] >>>>> 80000007fec10300 ffffffffc027fd20 8000000780cb0150 ffffffffc01e2e9c >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223719] >>>>> 00000008c0284b30 00000002c0284b30 80000007ea05c620 ffffffffc0280000 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223719] >>>>> c00000000205a080 80000007ea05de00 0000000000000000 8000000780cb0150 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223719] >>>>> 8000000780cb0160 0000000001d4c000 0000000000000000 8000000780cb0000 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223719] ... >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223796] Call Trace: >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223805] >>>>> [<ffffffff80e1d4a8>] __schedule+0x3c0/0xa58 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223814] >>>>> [<ffffffff80e1db78>] schedule+0x38/0x98 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223824] >>>>> [<ffffffff80e20584>] __down_write_nested+0x84/0xe8 >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223843] >>>>> [<ffffffffc027fd20>] snapshot_ctr+0x4d0/0x868 [dm_snapshot] >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223886] >>>>> [<ffffffffc01e31d4>] dm_table_add_target+0x164/0x418 [dm_mod] >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223921] >>>>> [<ffffffffc01e7bdc>] table_load+0x194/0x478 [dm_mod] >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.223956] >>>>> [<ffffffffc01e8e1c>] ctl_ioctl+0x424/0x678 [dm_mod] >>>>> Sep 24 12:08:49.168796 warn CFPU-1 kernel: [ 280.224006] >>>>> [<ffffffffc01e90a0>] dm_ctl_ioctl+0x30/0x40 [dm_mod] >>>>> Sep 24 12:08:49.170177 warn CFPU-1 kernel: [ 280.224040] >>>>> [<ffffffff809f29cc>] do_vfs_ioctl+0x38c/0x5f8 >>>>> Sep 24 12:08:49.170177 warn CFPU-1 kernel: [ 280.224049] >>>>> [<ffffffff809f2c98>] SyS_ioctl+0x60/0xc8 >>>>> Sep 24 12:08:49.170177 warn CFPU-1 kernel: [ 280.224059] >>>>> [<ffffffff80879b70>] syscall_common+0x34/0x58 >>>>> Sep 24 12:08:49.170177 warn CFPU-1 kernel: [ 280.224065] >>>>> >>> >>> >>> >>> -- >>> Guruswamy Basavaiah >>> > > > -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
