Hi, I'm seeing the same lockup, also 4.19. This is mdadm RAID10 on top of 4x a partition with only dm-integrity. It just happened out of the blue, no heavy load or anything. All IO to it is frozen now. [777184.932426] INFO: task md127_raid10:507 blocked for more than 120 seconds. [777184.932544] Tainted: G W 4.19.0-mx4-amd64 #1 Debian 4.19.28-2+mendix1 [777184.932666] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [777184.932788] md127_raid10 D 0 507 2 0x80000000 [777184.932791] Call Trace: [777184.932801] ? __schedule+0x2a2/0x870 [777184.932804] ? _raw_spin_unlock_irqrestore+0x14/0x20 [777184.932805] schedule+0x28/0x80 [777184.932814] md_super_wait+0x6e/0xa0 [md_mod] [777184.932820] ? finish_wait+0x80/0x80 [777184.932824] write_page+0x172/0x320 [md_mod] [777184.932826] ? __schedule+0x2aa/0x870 [777184.932828] ? _raw_spin_unlock_irqrestore+0x14/0x20 [777184.932832] md_update_sb.part.64+0x382/0x8f0 [md_mod] [777184.932837] md_check_recovery+0x148/0x540 [md_mod] [777184.932841] raid10d+0x62/0x1440 [raid10] [777184.932843] ? __switch_to_asm+0x34/0x70 [777184.932845] ? finish_task_switch+0x78/0x260 [777184.932847] ? _raw_spin_lock_irqsave+0x15/0x40 [777184.932850] ? lock_timer_base+0x67/0x80 [777184.932852] ? _raw_spin_unlock_irqrestore+0x14/0x20 [777184.932854] ? try_to_del_timer_sync+0x4d/0x80 [777184.932855] ? del_timer_sync+0x35/0x40 [777184.932857] ? schedule_timeout+0x173/0x390 [777184.932861] ? md_rdev_init+0xb0/0xb0 [md_mod] [777184.932864] ? md_thread+0x94/0x150 [md_mod] [777184.932866] ? raid10_end_write_request+0x290/0x290 [raid10] [777184.932869] md_thread+0x94/0x150 [md_mod] [777184.932872] ? finish_wait+0x80/0x80 [777184.932873] kthread+0x112/0x130 [777184.932875] ? kthread_bind+0x30/0x30 [777184.932877] ret_from_fork+0x35/0x40 [777184.932884] INFO: task 1.xvda-1:1657 blocked for more than 120 seconds. [777184.932979] Tainted: G W 4.19.0-mx4-amd64 #1 Debian 4.19.28-2+mendix1 [777184.933101] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [777184.933222] 1.xvda-1 D 0 1657 2 0x80000000 [777184.933223] Call Trace: [777184.933225] ? __schedule+0x2a2/0x870 [777184.933227] ? _raw_spin_unlock_irqrestore+0x14/0x20 [777184.933228] schedule+0x28/0x80 [777184.933232] md_write_start+0x14b/0x220 [md_mod] [777184.933234] ? finish_wait+0x80/0x80 [777184.933236] raid10_make_request+0x3d/0x130 [raid10] [777184.933239] ? finish_wait+0x80/0x80 [777184.933242] md_handle_request+0x119/0x190 [md_mod] [777184.933247] md_make_request+0x78/0x160 [md_mod] [777184.933251] generic_make_request+0x1a4/0x410 [777184.933254] ? bvec_alloc+0x51/0xe0 [777184.933256] submit_bio+0x45/0x140 [777184.933258] ? bio_add_page+0x48/0x60 [777184.933263] dispatch_rw_block_io+0x68f/0x990 [xen_blkback] [777184.933266] ? branch_type+0x2e4/0x350 [777184.933269] __do_block_io_op+0x2fc/0x5f0 [xen_blkback] [777184.933271] ? _raw_spin_unlock_irqrestore+0x14/0x20 [777184.933272] ? try_to_del_timer_sync+0x4d/0x80 [777184.933275] xen_blkif_schedule+0xce/0x620 [xen_blkback] [777184.933277] ? finish_wait+0x80/0x80 [777184.933279] ? xen_blkif_be_int+0x30/0x30 [xen_blkback] [777184.933281] kthread+0x112/0x130 [777184.933282] ? kthread_bind+0x30/0x30 [777184.933283] ret_from_fork+0x35/0x40 [777184.933293] INFO: task 11.xvda-0:14864 blocked for more than 120 seconds. [777184.933387] Tainted: G W 4.19.0-mx4-amd64 #1 Debian 4.19.28-2+mendix1 [777184.933509] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [777184.933638] 11.xvda-0 D 0 14864 2 0x80000000 [777184.933640] Call Trace: [777184.933642] ? __schedule+0x2a2/0x870 [777184.933643] ? _raw_spin_unlock_irqrestore+0x14/0x20 [777184.933644] schedule+0x28/0x80 [777184.933648] md_write_start+0x14b/0x220 [md_mod] [777184.933650] ? finish_wait+0x80/0x80 [777184.933652] raid10_make_request+0x3d/0x130 [raid10] [777184.933654] ? finish_wait+0x80/0x80 [777184.933658] md_handle_request+0x119/0x190 [md_mod] [777184.933662] md_make_request+0x78/0x160 [md_mod] [777184.933664] generic_make_request+0x1a4/0x410 [777184.933666] submit_bio+0x45/0x140 [777184.933668] ? bio_add_page+0x48/0x60 [777184.933670] dispatch_rw_block_io+0x68f/0x990 [xen_blkback] [777184.933672] ? branch_type+0x2e7/0x350 [777184.933674] __do_block_io_op+0x2fc/0x5f0 [xen_blkback] [777184.933676] ? _raw_spin_unlock_irqrestore+0x14/0x20 [777184.933678] ? try_to_del_timer_sync+0x4d/0x80 [777184.933680] xen_blkif_schedule+0xce/0x620 [xen_blkback] [777184.933682] ? __schedule+0x2aa/0x870 [777184.933684] ? finish_wait+0x80/0x80 [777184.933686] ? xen_blkif_be_int+0x30/0x30 [xen_blkback] [777184.933687] kthread+0x112/0x130 [777184.933688] ? kthread_bind+0x30/0x30 [777184.933689] ret_from_fork+0x35/0x40 [777184.933694] INFO: task btrfs-transacti:15468 blocked for more than 120 seconds. [777184.933815] Tainted: G W 4.19.0-mx4-amd64 #1 Debian 4.19.28-2+mendix1 [777184.933937] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [777184.934058] btrfs-transacti D 0 15468 2 0x80000000 [777184.934059] Call Trace: [777184.934061] ? __schedule+0x2a2/0x870 [777184.934062] ? _raw_spin_unlock_irqrestore+0x14/0x20 [777184.934063] schedule+0x28/0x80 [777184.934067] md_write_start+0x14b/0x220 [md_mod] [777184.934069] ? finish_wait+0x80/0x80 [777184.934072] raid10_make_request+0x3d/0x130 [raid10] [777184.934074] ? finish_wait+0x80/0x80 [777184.934077] md_handle_request+0x119/0x190 [md_mod] [777184.934081] md_make_request+0x78/0x160 [md_mod] [777184.934083] generic_make_request+0x1a4/0x410 [777184.934085] submit_bio+0x45/0x140 [777184.934086] ? bio_clone_fast+0x2c/0x60 [777184.934119] btrfs_map_bio+0x20a/0x350 [btrfs] [777184.934136] btree_submit_bio_hook+0x8d/0xc0 [btrfs] [777184.934155] submit_one_bio+0x5f/0x80 [btrfs] [777184.934173] flush_write_bio.isra.40+0x1d/0x30 [btrfs] [777184.934191] btree_write_cache_pages+0x243/0x360 [btrfs] [777184.934210] ? alloc_extent_state+0x1e/0xc0 [btrfs] [777184.934226] ? btrfs_buffer_uptodate+0x33/0x50 [btrfs] [777184.934238] ? read_block_for_search.isra.36+0xf2/0x340 [btrfs] [777184.934241] do_writepages+0x41/0xd0 [777184.934244] ? __slab_alloc+0x27/0x30 [777184.934261] ? merge_state.part.45+0x3f/0x130 [btrfs] [777184.934262] ? kmem_cache_alloc+0x15c/0x1c0 [777184.934279] ? clear_state_bit+0xdb/0x180 [btrfs] [777184.934281] __filemap_fdatawrite_range+0xbe/0xf0 [777184.934298] btrfs_write_marked_extents+0x68/0x150 [btrfs] [777184.934314] btrfs_write_and_wait_transaction.isra.21+0x4d/0xa0 [btrfs] [777184.934331] btrfs_commit_transaction+0x56c/0x870 [btrfs] [777184.934347] ? start_transaction+0x9d/0x3f0 [btrfs] [777184.934362] transaction_kthread+0x147/0x180 [btrfs] [777184.934379] ? btrfs_cleanup_transaction+0x530/0x530 [btrfs] [777184.934380] kthread+0x112/0x130 [777184.934381] ? kthread_bind+0x30/0x30 [777184.934383] ret_from_fork+0x35/0x40 [777184.934391] INFO: task kworker/1:3:16943 blocked for more than 120 seconds. [777184.934487] Tainted: G W 4.19.0-mx4-amd64 #1 Debian 4.19.28-2+mendix1 [777184.934617] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [777184.934747] kworker/1:3 D 0 16943 2 0x80000000 [777184.934753] Workqueue: dm-integrity-metadata integrity_bio_wait [dm_integrity] [777184.934754] Call Trace: [777184.934756] ? __schedule+0x2a2/0x870 [777184.934757] schedule+0x28/0x80 [777184.934760] io_schedule+0x12/0x40 [777184.934763] wait_and_add_new_range+0x89/0xa0 [dm_integrity] [777184.934766] dm_integrity_map_continue+0xe71/0x1020 [dm_integrity] [777184.934769] ? xen_load_sp0+0x77/0x170 [777184.934771] ? __switch_to+0x1e1/0x440 [777184.934773] ? finish_task_switch+0x78/0x260 [777184.934775] process_one_work+0x1a7/0x3a0 [777184.934777] worker_thread+0x30/0x390 [777184.934779] ? create_worker+0x1a0/0x1a0 [777184.934781] kthread+0x112/0x130 [777184.934782] ? kthread_bind+0x30/0x30 [777184.934783] ret_from_fork+0x35/0x40 [777184.934787] INFO: task kworker/0:8:17282 blocked for more than 120 seconds. [777184.934882] Tainted: G W 4.19.0-mx4-amd64 #1 Debian 4.19.28-2+mendix1 [777184.935005] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [777184.935125] kworker/0:8 D 0 17282 2 0x80000000 [777184.935129] Workqueue: dm-integrity-metadata integrity_bio_wait [dm_integrity] [777184.935130] Call Trace: [777184.935132] ? __schedule+0x2a2/0x870 [777184.935133] schedule+0x28/0x80 [777184.935135] io_schedule+0x12/0x40 [777184.935137] wait_and_add_new_range+0x89/0xa0 [dm_integrity] [777184.935139] dm_integrity_map_continue+0xe71/0x1020 [dm_integrity] [777184.935141] ? xen_load_sp0+0x77/0x170 [777184.935143] ? __switch_to+0x1e1/0x440 [777184.935144] ? finish_task_switch+0x78/0x260 [777184.935146] process_one_work+0x1a7/0x3a0 [777184.935148] worker_thread+0x30/0x390 [777184.935149] ? create_worker+0x1a0/0x1a0 [777184.935150] kthread+0x112/0x130 [777184.935151] ? kthread_bind+0x30/0x30 [777184.935153] ret_from_fork+0x35/0x40 [777184.935156] INFO: task kworker/u8:9:17284 blocked for more than 120 seconds. [777184.935251] Tainted: G W 4.19.0-mx4-amd64 #1 Debian 4.19.28-2+mendix1 [777184.935373] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [777184.935494] kworker/u8:9 D 0 17284 2 0x80000000 [777184.935515] Workqueue: btrfs-submit btrfs_submit_helper [btrfs] [777184.935515] Call Trace: [777184.935517] ? __schedule+0x2a2/0x870 [777184.935519] ? _raw_spin_unlock_irqrestore+0x14/0x20 [777184.935520] schedule+0x28/0x80 [777184.935525] md_write_start+0x14b/0x220 [md_mod] [777184.935527] ? finish_wait+0x80/0x80 [777184.935529] raid10_make_request+0x3d/0x130 [raid10] [777184.935531] ? finish_wait+0x80/0x80 [777184.935535] md_handle_request+0x119/0x190 [md_mod] [777184.935539] md_make_request+0x78/0x160 [md_mod] [777184.935541] generic_make_request+0x1a4/0x410 [777184.935544] submit_bio+0x45/0x140 [777184.935562] run_scheduled_bios+0x18e/0x440 [btrfs] [777184.935581] normal_work_helper+0xba/0x300 [btrfs] [777184.935584] process_one_work+0x1a7/0x3a0 [777184.935586] worker_thread+0x30/0x390 [777184.935587] ? create_worker+0x1a0/0x1a0 [777184.935588] kthread+0x112/0x130 [777184.935589] ? kthread_bind+0x30/0x30 [777184.935591] ret_from_fork+0x35/0x40 [777184.935593] INFO: task kworker/1:13:17315 blocked for more than 120 seconds. [777184.935713] Tainted: G W 4.19.0-mx4-amd64 #1 Debian 4.19.28-2+mendix1 [777184.935836] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [777184.935957] kworker/1:13 D 0 17315 2 0x80000000 [777184.935960] Workqueue: dm-integrity-metadata integrity_bio_wait [dm_integrity] [777184.935961] Call Trace: [777184.935963] ? __schedule+0x2a2/0x870 [777184.935965] schedule+0x28/0x80 [777184.935967] io_schedule+0x12/0x40 [777184.935969] wait_and_add_new_range+0x89/0xa0 [dm_integrity] [777184.935971] dm_integrity_map_continue+0xe71/0x1020 [dm_integrity] [777184.935973] ? xen_load_sp0+0x77/0x170 [777184.935975] ? __switch_to+0x1e1/0x440 [777184.935976] ? finish_task_switch+0x78/0x260 [777184.935978] process_one_work+0x1a7/0x3a0 [777184.935980] worker_thread+0x30/0x390 [777184.935981] ? create_worker+0x1a0/0x1a0 [777184.935982] kthread+0x112/0x130 [777184.935983] ? kthread_bind+0x30/0x30 [777184.935985] ret_from_fork+0x35/0x40 [777184.935988] INFO: task kworker/0:20:17330 blocked for more than 120 seconds. [777184.936083] Tainted: G W 4.19.0-mx4-amd64 #1 Debian 4.19.28-2+mendix1 [777184.936205] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [777184.936355] kworker/0:20 D 0 17330 2 0x80000000 [777184.936359] Workqueue: dm-integrity-metadata integrity_bio_wait [dm_integrity] [777184.936360] Call Trace: [777184.936363] ? __schedule+0x2a2/0x870 [777184.936364] schedule+0x28/0x80 [777184.936366] io_schedule+0x12/0x40 [777184.936368] wait_and_add_new_range+0x89/0xa0 [dm_integrity] [777184.936370] dm_integrity_map_continue+0xe71/0x1020 [dm_integrity] [777184.936373] ? xen_load_sp0+0x77/0x170 [777184.936374] ? __switch_to+0x1e1/0x440 [777184.936375] ? finish_task_switch+0x78/0x260 [777184.936377] process_one_work+0x1a7/0x3a0 [777184.936379] worker_thread+0x30/0x390 [777184.936381] ? create_worker+0x1a0/0x1a0 [777184.936382] kthread+0x112/0x130 [777184.936383] ? kthread_bind+0x30/0x30 [777184.936385] ret_from_fork+0x35/0x40 [777184.936390] INFO: task kworker/1:23:17371 blocked for more than 120 seconds. [777184.936500] Tainted: G W 4.19.0-mx4-amd64 #1 Debian 4.19.28-2+mendix1 [777184.936625] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [777184.936762] kworker/1:23 D 0 17371 2 0x80000000 [777184.936775] Workqueue: dm-integrity-metadata integrity_bio_wait [dm_integrity] [777184.936786] Call Trace: [777184.936791] ? __schedule+0x2a2/0x870 [777184.936798] schedule+0x28/0x80 [777184.936805] io_schedule+0x12/0x40 [777184.936812] wait_and_add_new_range+0x89/0xa0 [dm_integrity] [777184.936819] dm_integrity_map_continue+0xe71/0x1020 [dm_integrity] [777184.936828] ? xen_load_sp0+0x77/0x170 [777184.936834] ? __switch_to+0x1e1/0x440 [777184.936842] ? finish_task_switch+0x78/0x260 [777184.936849] process_one_work+0x1a7/0x3a0 [777184.936856] worker_thread+0x30/0x390 [777184.936862] ? create_worker+0x1a0/0x1a0 [777184.936868] kthread+0x112/0x130 [777184.936875] ? kthread_bind+0x30/0x30 [777184.936880] ret_from_fork+0x35/0x40 Hans On 3/7/19 5:37 PM, Milan Broz wrote: > Hi, > > from the full log it seems that it is stuck in tgtd (iSCSI). > > Anyway, this is device-mapper, dm-devel is better list here. > (added to cc + Mikulas) > > m. > > On 3/7/19 4:26 PM, Victor Helmholtz wrote: >> Hi >> >> I have recently had a problem with my server: all writes to RAID drives were frozen and I had to force-reboot it. I looked at kernel logs and I think dm-integrity might be source of the problem. Could anyone help me understand meaning of following messages (this message was repeated 8 times, full kernel log is here: https://pastebin.com/DMgMtNJq ): >> >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.498048] INFO: task kworker/0:112:26760 blocked for more than 120 seconds. >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.499784] Not tainted 4.19.0-2-amd64 #1 Debian 4.19.16-1 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.501222] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.503095] kworker/0:112 D 0 26760 2 0x80000080 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.504424] Workqueue: dm-integrity-metadata integrity_bio_wait [dm_integrity] >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.506149] Call Trace: >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.506782] ? __schedule+0x2a2/0x870 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.507706] schedule+0x28/0x80 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.508484] io_schedule+0x12/0x40 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.509321] wait_and_add_new_range+0x89/0xa0 [dm_integrity] >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.510709] dm_integrity_map_continue+0xe71/0x1020 [dm_integrity] >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.512193] ? __switch_to_asm+0x40/0x70 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.513149] ? __switch_to_asm+0x34/0x70 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.514105] ? __switch_to_asm+0x40/0x70 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.515088] ? __switch_to_asm+0x40/0x70 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.516048] ? __switch_to_asm+0x34/0x70 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.517000] ? __switch_to_asm+0x40/0x70 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.517978] ? __switch_to_asm+0x34/0x70 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.518968] ? __switch_to_asm+0x34/0x70 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.519926] ? __switch_to+0x8c/0x440 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.520822] process_one_work+0x1a7/0x3a0 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.521798] worker_thread+0x30/0x390 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.522725] ? pwq_unbound_release_workfn+0xd0/0xd0 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.523901] kthread+0x112/0x130 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.524691] ? kthread_bind+0x30/0x30 >> Mar 1 23:48:21 unassigned-hostname kernel: [369732.525584] ret_from_fork+0x35/0x40 >> >> Is this a bug in kernel or do I have some problems with hardware? _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx https://www.saout.de/mailman/listinfo/dm-crypt
