https://bugzilla.kernel.org/show_bug.cgi?id=201331 --- Comment #4 from edo (edo.rus@xxxxxxxxx) --- I tested with 4.17 and 4.18 prebuilt Debian kernels, behavior is the same: Sep 30 16:01:23 storage10x10n1 kernel: [23683.218388] INFO: task kworker/u24:0:21848 blocked for more than 120 seconds. Sep 30 16:01:23 storage10x10n1 kernel: [23683.218495] Not tainted 4.18.0-0.bpo.1-amd64 #1 Debian 4.18.6-1~bpo9+1 Sep 30 16:01:23 storage10x10n1 kernel: [23683.218593] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Sep 30 16:01:23 storage10x10n1 kernel: [23683.218712] kworker/u24:0 D 0 21848 2 0x80000000 Sep 30 16:01:23 storage10x10n1 kernel: [23683.218814] Workqueue: writeback wb_workfn (flush-9:3) Sep 30 16:01:23 storage10x10n1 kernel: [23683.218910] Call Trace: Sep 30 16:01:23 storage10x10n1 kernel: [23683.219005] ? __schedule+0x3f5/0x880 Sep 30 16:01:23 storage10x10n1 kernel: [23683.219096] schedule+0x32/0x80 Sep 30 16:01:23 storage10x10n1 kernel: [23683.219192] bitmap_startwrite+0x161/0x1e0 [md_mod] Sep 30 16:01:23 storage10x10n1 kernel: [23683.219291] ? remove_wait_queue+0x60/0x60 Sep 30 16:01:23 storage10x10n1 kernel: [23683.219388] add_stripe_bio+0x441/0x7d0 [raid456] Sep 30 16:01:23 storage10x10n1 kernel: [23683.219484] raid5_make_request+0x1ae/0xb10 [raid456] Sep 30 16:01:23 storage10x10n1 kernel: [23683.219580] ? remove_wait_queue+0x60/0x60 Sep 30 16:01:23 storage10x10n1 kernel: [23683.219675] ? blk_queue_split+0x222/0x5e0 Sep 30 16:01:23 storage10x10n1 kernel: [23683.219770] md_handle_request+0x116/0x190 [md_mod] Sep 30 16:01:23 storage10x10n1 kernel: [23683.219867] md_make_request+0x65/0x160 [md_mod] Sep 30 16:01:23 storage10x10n1 kernel: [23683.219962] generic_make_request+0x1e7/0x410 Sep 30 16:01:23 storage10x10n1 kernel: [23683.220058] ? submit_bio+0x6c/0x140 Sep 30 16:01:23 storage10x10n1 kernel: [23683.220148] submit_bio+0x6c/0x140 Sep 30 16:01:23 storage10x10n1 kernel: [23683.220294] xfs_add_to_ioend+0x14c/0x280 [xfs] Sep 30 16:01:23 storage10x10n1 kernel: [23683.220415] ? xfs_map_buffer.isra.14+0x37/0x70 [xfs] Sep 30 16:01:23 storage10x10n1 kernel: [23683.220534] xfs_do_writepage+0x2bb/0x680 [xfs] Sep 30 16:01:23 storage10x10n1 kernel: [23683.220632] ? clear_page_dirty_for_io+0x20c/0x2a0 Sep 30 16:01:23 storage10x10n1 kernel: [23683.220727] write_cache_pages+0x1ed/0x430 Sep 30 16:01:23 storage10x10n1 kernel: [23683.220852] ? xfs_add_to_ioend+0x280/0x280 [xfs] Sep 30 16:01:23 storage10x10n1 kernel: [23683.220971] xfs_vm_writepages+0x64/0xa0 [xfs] Sep 30 16:01:23 storage10x10n1 kernel: [23683.221068] do_writepages+0x1a/0x60 Sep 30 16:01:23 storage10x10n1 kernel: [23683.221161] __writeback_single_inode+0x3d/0x320 Sep 30 16:01:23 storage10x10n1 kernel: [23683.221255] writeback_sb_inodes+0x221/0x4b0 Sep 30 16:01:23 storage10x10n1 kernel: [23683.221349] __writeback_inodes_wb+0x87/0xb0 Sep 30 16:01:23 storage10x10n1 kernel: [23683.221442] wb_writeback+0x288/0x320 Sep 30 16:01:23 storage10x10n1 kernel: [23683.221534] ? cpumask_next+0x16/0x20 Sep 30 16:01:23 storage10x10n1 kernel: [23683.221626] ? wb_workfn+0x37c/0x450 Sep 30 16:01:23 storage10x10n1 kernel: [23683.221717] wb_workfn+0x37c/0x450 Sep 30 16:01:23 storage10x10n1 kernel: [23683.221811] process_one_work+0x191/0x370 Sep 30 16:01:23 storage10x10n1 kernel: [23683.221904] worker_thread+0x4f/0x3b0 Sep 30 16:01:23 storage10x10n1 kernel: [23683.221995] kthread+0xf8/0x130 Sep 30 16:01:23 storage10x10n1 kernel: [23683.222086] ? rescuer_thread+0x340/0x340 Sep 30 16:01:23 storage10x10n1 kernel: [23683.222179] ? kthread_create_worker_on_cpu+0x70/0x70 Sep 30 16:01:23 storage10x10n1 kernel: [23683.222276] ret_from_fork+0x1f/0x40 -- You are receiving this mail because: You are watching the assignee of the bug.