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. 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 > > -- Guruswamy Basavaiah -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
