On Wed, Sep 11, 2019 at 8:10 AM Michal Hocko <mhocko@xxxxxxxxxx> wrote: > > This smells like IO/Btrfs issue to me. Cc some more people. > > On Wed 11-09-19 08:12:28, Stefan Priebe - Profihost AG wrote: > [...] > > Sadly i'm running into issues with btrfs on 5.3-rc8 - the rsync process > > on backup disk completely hangs / is blocked at 100% i/o: > > [54739.065906] INFO: task rsync:9830 blocked for more than 120 seconds. > > [54739.066973] Not tainted 5.3.0-rc8 #1 > > [54739.067988] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" > > disables this message. > > [54739.069065] rsync D 0 9830 9829 0x00004002 > > [54739.070146] Call Trace: > > [54739.071183] ? __schedule+0x3cf/0x680 > > [54739.072202] ? bit_wait+0x50/0x50 > > [54739.073196] schedule+0x39/0xa0 > > [54739.074213] io_schedule+0x12/0x40 > > [54739.075219] bit_wait_io+0xd/0x50 > > [54739.076227] __wait_on_bit+0x66/0x90 > > [54739.077239] ? bit_wait+0x50/0x50 > > [54739.078273] out_of_line_wait_on_bit+0x8b/0xb0 > > [54739.078741] ? init_wait_var_entry+0x40/0x40 > > [54739.079162] lock_extent_buffer_for_io+0x10b/0x2c0 [btrfs] > > [54739.079557] btree_write_cache_pages+0x17d/0x350 [btrfs] > > [54739.079956] ? btrfs_set_token_32+0x72/0x130 [btrfs] > > [54739.080357] ? merge_state.part.47+0x3f/0x160 [btrfs] > > [54739.080748] do_writepages+0x1a/0x60 > > [54739.081140] __filemap_fdatawrite_range+0xc8/0x100 > > [54739.081558] ? convert_extent_bit+0x2e8/0x580 [btrfs] > > [54739.081985] btrfs_write_marked_extents+0x141/0x160 [btrfs] > > [54739.082412] btrfs_write_and_wait_transaction.isra.26+0x58/0xb0 [btrfs] > > [54739.082847] ? btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [54739.083280] btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [54739.083725] ? btrfs_log_dentry_safe+0x54/0x70 [btrfs] > > [54739.084170] btrfs_sync_file+0x395/0x3e0 [btrfs] > > [54739.084608] ? retarget_shared_pending+0x70/0x70 > > [54739.085049] do_fsync+0x38/0x60 > > [54739.085494] __x64_sys_fdatasync+0x13/0x20 > > [54739.085944] do_syscall_64+0x55/0x1a0 > > [54739.086395] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > [54739.086850] RIP: 0033:0x7f1db3fc85f0 > > [54739.087310] Code: Bad RIP value. It's a regression introduced in 5.2 Fix just sent: https://lore.kernel.org/linux-btrfs/20190911145542.1125-1-fdmanana@xxxxxxxxxx/T/#u Thanks. > > [54739.087772] RSP: 002b:00007ffe6f827db8 EFLAGS: 00000246 ORIG_RAX: > > 000000000000004b > > [54739.088249] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: > > 00007f1db3fc85f0 > > [54739.088733] RDX: 00007f1db4aa6060 RSI: 0000000000000003 RDI: > > 0000000000000001 > > [54739.089234] RBP: 0000000000000001 R08: 0000000000000000 R09: > > 0000000081c492ca > > [54739.089722] R10: 0000000000000008 R11: 0000000000000246 R12: > > 0000000000000028 > > [54739.090205] R13: 00007ffe6f827e40 R14: 0000000000000000 R15: > > 0000000000000000 > > [54859.899715] INFO: task rsync:9830 blocked for more than 241 seconds. > > [54859.900863] Not tainted 5.3.0-rc8 #1 > > [54859.901885] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" > > disables this message. > > [54859.902909] rsync D 0 9830 9829 0x00004002 > > [54859.903930] Call Trace: > > [54859.904888] ? __schedule+0x3cf/0x680 > > [54859.905831] ? bit_wait+0x50/0x50 > > [54859.906751] schedule+0x39/0xa0 > > [54859.907653] io_schedule+0x12/0x40 > > [54859.908535] bit_wait_io+0xd/0x50 > > [54859.909441] __wait_on_bit+0x66/0x90 > > [54859.910306] ? bit_wait+0x50/0x50 > > [54859.911177] out_of_line_wait_on_bit+0x8b/0xb0 > > [54859.912043] ? init_wait_var_entry+0x40/0x40 > > [54859.912727] lock_extent_buffer_for_io+0x10b/0x2c0 [btrfs] > > [54859.913113] btree_write_cache_pages+0x17d/0x350 [btrfs] > > [54859.913501] ? btrfs_set_token_32+0x72/0x130 [btrfs] > > [54859.913894] ? merge_state.part.47+0x3f/0x160 [btrfs] > > [54859.914276] do_writepages+0x1a/0x60 > > [54859.914656] __filemap_fdatawrite_range+0xc8/0x100 > > [54859.915052] ? convert_extent_bit+0x2e8/0x580 [btrfs] > > [54859.915449] btrfs_write_marked_extents+0x141/0x160 [btrfs] > > [54859.915855] btrfs_write_and_wait_transaction.isra.26+0x58/0xb0 [btrfs] > > [54859.916256] ? btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [54859.916658] btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [54859.917078] ? btrfs_log_dentry_safe+0x54/0x70 [btrfs] > > [54859.917497] btrfs_sync_file+0x395/0x3e0 [btrfs] > > [54859.917903] ? retarget_shared_pending+0x70/0x70 > > [54859.918307] do_fsync+0x38/0x60 > > [54859.918707] __x64_sys_fdatasync+0x13/0x20 > > [54859.919106] do_syscall_64+0x55/0x1a0 > > [54859.919482] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > [54859.919866] RIP: 0033:0x7f1db3fc85f0 > > [54859.920243] Code: Bad RIP value. > > [54859.920614] RSP: 002b:00007ffe6f827db8 EFLAGS: 00000246 ORIG_RAX: > > 000000000000004b > > [54859.920997] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: > > 00007f1db3fc85f0 > > [54859.921383] RDX: 00007f1db4aa6060 RSI: 0000000000000003 RDI: > > 0000000000000001 > > [54859.921773] RBP: 0000000000000001 R08: 0000000000000000 R09: > > 0000000081c492ca > > [54859.922165] R10: 0000000000000008 R11: 0000000000000246 R12: > > 0000000000000028 > > [54859.922551] R13: 00007ffe6f827e40 R14: 0000000000000000 R15: > > 0000000000000000 > > [54980.733463] INFO: task rsync:9830 blocked for more than 362 seconds. > > [54980.734061] Not tainted 5.3.0-rc8 #1 > > [54980.734619] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" > > disables this message. > > [54980.735209] rsync D 0 9830 9829 0x00004002 > > [54980.735802] Call Trace: > > [54980.736473] ? __schedule+0x3cf/0x680 > > [54980.737054] ? bit_wait+0x50/0x50 > > [54980.737664] schedule+0x39/0xa0 > > [54980.738243] io_schedule+0x12/0x40 > > [54980.738712] bit_wait_io+0xd/0x50 > > [54980.739171] __wait_on_bit+0x66/0x90 > > [54980.739623] ? bit_wait+0x50/0x50 > > [54980.740073] out_of_line_wait_on_bit+0x8b/0xb0 > > [54980.740548] ? init_wait_var_entry+0x40/0x40 > > [54980.741033] lock_extent_buffer_for_io+0x10b/0x2c0 [btrfs] > > [54980.741579] btree_write_cache_pages+0x17d/0x350 [btrfs] > > [54980.742076] ? btrfs_set_token_32+0x72/0x130 [btrfs] > > [54980.742560] ? merge_state.part.47+0x3f/0x160 [btrfs] > > [54980.743045] do_writepages+0x1a/0x60 > > [54980.743516] __filemap_fdatawrite_range+0xc8/0x100 > > [54980.744019] ? convert_extent_bit+0x2e8/0x580 [btrfs] > > [54980.744513] btrfs_write_marked_extents+0x141/0x160 [btrfs] > > [54980.745026] btrfs_write_and_wait_transaction.isra.26+0x58/0xb0 [btrfs] > > [54980.745563] ? btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [54980.746073] btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [54980.746575] ? btrfs_log_dentry_safe+0x54/0x70 [btrfs] > > [54980.747074] btrfs_sync_file+0x395/0x3e0 [btrfs] > > [54980.747575] ? retarget_shared_pending+0x70/0x70 > > [54980.748059] do_fsync+0x38/0x60 > > [54980.748539] __x64_sys_fdatasync+0x13/0x20 > > [54980.749012] do_syscall_64+0x55/0x1a0 > > [54980.749512] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > [54980.749995] RIP: 0033:0x7f1db3fc85f0 > > [54980.750368] Code: Bad RIP value. > > [54980.750735] RSP: 002b:00007ffe6f827db8 EFLAGS: 00000246 ORIG_RAX: > > 000000000000004b > > [54980.751117] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: > > 00007f1db3fc85f0 > > [54980.751505] RDX: 00007f1db4aa6060 RSI: 0000000000000003 RDI: > > 0000000000000001 > > [54980.751895] RBP: 0000000000000001 R08: 0000000000000000 R09: > > 0000000081c492ca > > [54980.752291] R10: 0000000000000008 R11: 0000000000000246 R12: > > 0000000000000028 > > [54980.752680] R13: 00007ffe6f827e40 R14: 0000000000000000 R15: > > 0000000000000000 > > [55101.567251] INFO: task rsync:9830 blocked for more than 483 seconds. > > [55101.567775] Not tainted 5.3.0-rc8 #1 > > [55101.568218] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" > > disables this message. > > [55101.568649] rsync D 0 9830 9829 0x00004002 > > [55101.569101] Call Trace: > > [55101.569609] ? __schedule+0x3cf/0x680 > > [55101.570052] ? bit_wait+0x50/0x50 > > [55101.570504] schedule+0x39/0xa0 > > [55101.570938] io_schedule+0x12/0x40 > > [55101.571404] bit_wait_io+0xd/0x50 > > [55101.571934] __wait_on_bit+0x66/0x90 > > [55101.572601] ? bit_wait+0x50/0x50 > > [55101.573235] out_of_line_wait_on_bit+0x8b/0xb0 > > [55101.573599] ? init_wait_var_entry+0x40/0x40 > > [55101.574008] lock_extent_buffer_for_io+0x10b/0x2c0 [btrfs] > > [55101.574394] btree_write_cache_pages+0x17d/0x350 [btrfs] > > [55101.574783] ? btrfs_set_token_32+0x72/0x130 [btrfs] > > [55101.575184] ? merge_state.part.47+0x3f/0x160 [btrfs] > > [55101.575580] do_writepages+0x1a/0x60 > > [55101.575959] __filemap_fdatawrite_range+0xc8/0x100 > > [55101.576351] ? convert_extent_bit+0x2e8/0x580 [btrfs] > > [55101.576746] btrfs_write_marked_extents+0x141/0x160 [btrfs] > > [55101.577144] btrfs_write_and_wait_transaction.isra.26+0x58/0xb0 [btrfs] > > [55101.577543] ? btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55101.577939] btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55101.578343] ? btrfs_log_dentry_safe+0x54/0x70 [btrfs] > > [55101.578746] btrfs_sync_file+0x395/0x3e0 [btrfs] > > [55101.579139] ? retarget_shared_pending+0x70/0x70 > > [55101.579543] do_fsync+0x38/0x60 > > [55101.579928] __x64_sys_fdatasync+0x13/0x20 > > [55101.580312] do_syscall_64+0x55/0x1a0 > > [55101.580706] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > [55101.581086] RIP: 0033:0x7f1db3fc85f0 > > [55101.581463] Code: Bad RIP value. > > [55101.581834] RSP: 002b:00007ffe6f827db8 EFLAGS: 00000246 ORIG_RAX: > > 000000000000004b > > [55101.582219] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: > > 00007f1db3fc85f0 > > [55101.582607] RDX: 00007f1db4aa6060 RSI: 0000000000000003 RDI: > > 0000000000000001 > > [55101.582998] RBP: 0000000000000001 R08: 0000000000000000 R09: > > 0000000081c492ca > > [55101.583397] R10: 0000000000000008 R11: 0000000000000246 R12: > > 0000000000000028 > > [55101.583784] R13: 00007ffe6f827e40 R14: 0000000000000000 R15: > > 0000000000000000 > > [55222.405056] INFO: task rsync:9830 blocked for more than 604 seconds. > > [55222.405773] Not tainted 5.3.0-rc8 #1 > > [55222.406456] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" > > disables this message. > > [55222.407158] rsync D 0 9830 9829 0x00004002 > > [55222.407776] Call Trace: > > [55222.408450] ? __schedule+0x3cf/0x680 > > [55222.409206] ? bit_wait+0x50/0x50 > > [55222.409942] schedule+0x39/0xa0 > > [55222.410658] io_schedule+0x12/0x40 > > [55222.411346] bit_wait_io+0xd/0x50 > > [55222.411946] __wait_on_bit+0x66/0x90 > > [55222.412572] ? bit_wait+0x50/0x50 > > [55222.413249] out_of_line_wait_on_bit+0x8b/0xb0 > > [55222.413944] ? init_wait_var_entry+0x40/0x40 > > [55222.414675] lock_extent_buffer_for_io+0x10b/0x2c0 [btrfs] > > [55222.415362] btree_write_cache_pages+0x17d/0x350 [btrfs] > > [55222.416085] ? btrfs_set_token_32+0x72/0x130 [btrfs] > > [55222.416796] ? merge_state.part.47+0x3f/0x160 [btrfs] > > [55222.417505] do_writepages+0x1a/0x60 > > [55222.418243] __filemap_fdatawrite_range+0xc8/0x100 > > [55222.418969] ? convert_extent_bit+0x2e8/0x580 [btrfs] > > [55222.419713] btrfs_write_marked_extents+0x141/0x160 [btrfs] > > [55222.420453] btrfs_write_and_wait_transaction.isra.26+0x58/0xb0 [btrfs] > > [55222.421206] ? btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55222.421925] btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55222.422656] ? btrfs_log_dentry_safe+0x54/0x70 [btrfs] > > [55222.423400] btrfs_sync_file+0x395/0x3e0 [btrfs] > > [55222.424140] ? retarget_shared_pending+0x70/0x70 > > [55222.424861] do_fsync+0x38/0x60 > > [55222.425581] __x64_sys_fdatasync+0x13/0x20 > > [55222.426308] do_syscall_64+0x55/0x1a0 > > [55222.427025] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > [55222.427732] RIP: 0033:0x7f1db3fc85f0 > > [55222.428396] Code: Bad RIP value. > > [55222.429087] RSP: 002b:00007ffe6f827db8 EFLAGS: 00000246 ORIG_RAX: > > 000000000000004b > > [55222.429757] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: > > 00007f1db3fc85f0 > > [55222.430451] RDX: 00007f1db4aa6060 RSI: 0000000000000003 RDI: > > 0000000000000001 > > [55222.431159] RBP: 0000000000000001 R08: 0000000000000000 R09: > > 0000000081c492ca > > [55222.431856] R10: 0000000000000008 R11: 0000000000000246 R12: > > 0000000000000028 > > [55222.432544] R13: 00007ffe6f827e40 R14: 0000000000000000 R15: > > 0000000000000000 > > [55343.234863] INFO: task rsync:9830 blocked for more than 724 seconds. > > [55343.235887] Not tainted 5.3.0-rc8 #1 > > [55343.236611] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" > > disables this message. > > [55343.237213] rsync D 0 9830 9829 0x00004002 > > [55343.237766] Call Trace: > > [55343.238353] ? __schedule+0x3cf/0x680 > > [55343.238971] ? bit_wait+0x50/0x50 > > [55343.239592] schedule+0x39/0xa0 > > [55343.240173] io_schedule+0x12/0x40 > > [55343.240721] bit_wait_io+0xd/0x50 > > [55343.241266] __wait_on_bit+0x66/0x90 > > [55343.241835] ? bit_wait+0x50/0x50 > > [55343.242418] out_of_line_wait_on_bit+0x8b/0xb0 > > [55343.242938] ? init_wait_var_entry+0x40/0x40 > > [55343.243496] lock_extent_buffer_for_io+0x10b/0x2c0 [btrfs] > > [55343.244090] btree_write_cache_pages+0x17d/0x350 [btrfs] > > [55343.244720] ? btrfs_set_token_32+0x72/0x130 [btrfs] > > [55343.245296] ? merge_state.part.47+0x3f/0x160 [btrfs] > > [55343.245843] do_writepages+0x1a/0x60 > > [55343.246407] __filemap_fdatawrite_range+0xc8/0x100 > > [55343.247014] ? convert_extent_bit+0x2e8/0x580 [btrfs] > > [55343.247631] btrfs_write_marked_extents+0x141/0x160 [btrfs] > > [55343.248186] btrfs_write_and_wait_transaction.isra.26+0x58/0xb0 [btrfs] > > [55343.248743] ? btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55343.249326] btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55343.249931] ? btrfs_log_dentry_safe+0x54/0x70 [btrfs] > > [55343.250562] btrfs_sync_file+0x395/0x3e0 [btrfs] > > [55343.251139] ? retarget_shared_pending+0x70/0x70 > > [55343.251628] do_fsync+0x38/0x60 > > [55343.252208] __x64_sys_fdatasync+0x13/0x20 > > [55343.252702] do_syscall_64+0x55/0x1a0 > > [55343.253212] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > [55343.253798] RIP: 0033:0x7f1db3fc85f0 > > [55343.254294] Code: Bad RIP value. > > [55343.254821] RSP: 002b:00007ffe6f827db8 EFLAGS: 00000246 ORIG_RAX: > > 000000000000004b > > [55343.255404] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: > > 00007f1db3fc85f0 > > [55343.255989] RDX: 00007f1db4aa6060 RSI: 0000000000000003 RDI: > > 0000000000000001 > > [55343.256521] RBP: 0000000000000001 R08: 0000000000000000 R09: > > 0000000081c492ca > > [55343.257073] R10: 0000000000000008 R11: 0000000000000246 R12: > > 0000000000000028 > > [55343.257649] R13: 00007ffe6f827e40 R14: 0000000000000000 R15: > > 0000000000000000 > > [55464.068704] INFO: task rsync:9830 blocked for more than 845 seconds. > > [55464.069701] Not tainted 5.3.0-rc8 #1 > > [55464.070655] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" > > disables this message. > > [55464.071637] rsync D 0 9830 9829 0x00004002 > > [55464.072637] Call Trace: > > [55464.073623] ? __schedule+0x3cf/0x680 > > [55464.074604] ? bit_wait+0x50/0x50 > > [55464.075577] schedule+0x39/0xa0 > > [55464.076531] io_schedule+0x12/0x40 > > [55464.077480] bit_wait_io+0xd/0x50 > > [55464.078400] __wait_on_bit+0x66/0x90 > > [55464.079300] ? bit_wait+0x50/0x50 > > [55464.080184] out_of_line_wait_on_bit+0x8b/0xb0 > > [55464.081107] ? init_wait_var_entry+0x40/0x40 > > [55464.082047] lock_extent_buffer_for_io+0x10b/0x2c0 [btrfs] > > [55464.083001] btree_write_cache_pages+0x17d/0x350 [btrfs] > > [55464.083963] ? btrfs_set_token_32+0x72/0x130 [btrfs] > > [55464.084944] ? merge_state.part.47+0x3f/0x160 [btrfs] > > [55464.085456] do_writepages+0x1a/0x60 > > [55464.085840] __filemap_fdatawrite_range+0xc8/0x100 > > [55464.086231] ? convert_extent_bit+0x2e8/0x580 [btrfs] > > [55464.086625] btrfs_write_marked_extents+0x141/0x160 [btrfs] > > [55464.087019] btrfs_write_and_wait_transaction.isra.26+0x58/0xb0 [btrfs] > > [55464.087417] ? btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55464.087814] btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55464.088219] ? btrfs_log_dentry_safe+0x54/0x70 [btrfs] > > [55464.088652] btrfs_sync_file+0x395/0x3e0 [btrfs] > > [55464.089043] ? retarget_shared_pending+0x70/0x70 > > [55464.089429] do_fsync+0x38/0x60 > > [55464.089811] __x64_sys_fdatasync+0x13/0x20 > > [55464.090190] do_syscall_64+0x55/0x1a0 > > [55464.090568] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > [55464.090944] RIP: 0033:0x7f1db3fc85f0 > > [55464.091321] Code: Bad RIP value. > > [55464.091693] RSP: 002b:00007ffe6f827db8 EFLAGS: 00000246 ORIG_RAX: > > 000000000000004b > > [55464.092078] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: > > 00007f1db3fc85f0 > > [55464.092467] RDX: 00007f1db4aa6060 RSI: 0000000000000003 RDI: > > 0000000000000001 > > [55464.092863] RBP: 0000000000000001 R08: 0000000000000000 R09: > > 0000000081c492ca > > [55464.093254] R10: 0000000000000008 R11: 0000000000000246 R12: > > 0000000000000028 > > [55464.093643] R13: 00007ffe6f827e40 R14: 0000000000000000 R15: > > 0000000000000000 > > [55584.902564] INFO: task rsync:9830 blocked for more than 966 seconds. > > [55584.903748] Not tainted 5.3.0-rc8 #1 > > [55584.904868] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" > > disables this message. > > [55584.906023] rsync D 0 9830 9829 0x00004002 > > [55584.907207] Call Trace: > > [55584.908355] ? __schedule+0x3cf/0x680 > > [55584.909507] ? bit_wait+0x50/0x50 > > [55584.910682] schedule+0x39/0xa0 > > [55584.911230] io_schedule+0x12/0x40 > > [55584.911666] bit_wait_io+0xd/0x50 > > [55584.912092] __wait_on_bit+0x66/0x90 > > [55584.912510] ? bit_wait+0x50/0x50 > > [55584.912924] out_of_line_wait_on_bit+0x8b/0xb0 > > [55584.913343] ? init_wait_var_entry+0x40/0x40 > > [55584.913795] lock_extent_buffer_for_io+0x10b/0x2c0 [btrfs] > > [55584.914242] btree_write_cache_pages+0x17d/0x350 [btrfs] > > [55584.914698] ? btrfs_set_token_32+0x72/0x130 [btrfs] > > [55584.915152] ? merge_state.part.47+0x3f/0x160 [btrfs] > > [55584.915588] do_writepages+0x1a/0x60 > > [55584.916022] __filemap_fdatawrite_range+0xc8/0x100 > > [55584.916474] ? convert_extent_bit+0x2e8/0x580 [btrfs] > > [55584.916928] btrfs_write_marked_extents+0x141/0x160 [btrfs] > > [55584.917386] btrfs_write_and_wait_transaction.isra.26+0x58/0xb0 [btrfs] > > [55584.917844] ? btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55584.918300] btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55584.918772] ? btrfs_log_dentry_safe+0x54/0x70 [btrfs] > > [55584.919233] btrfs_sync_file+0x395/0x3e0 [btrfs] > > [55584.919679] ? retarget_shared_pending+0x70/0x70 > > [55584.920122] do_fsync+0x38/0x60 > > [55584.920559] __x64_sys_fdatasync+0x13/0x20 > > [55584.920996] do_syscall_64+0x55/0x1a0 > > [55584.921429] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > [55584.921865] RIP: 0033:0x7f1db3fc85f0 > > [55584.922298] Code: Bad RIP value. > > [55584.922734] RSP: 002b:00007ffe6f827db8 EFLAGS: 00000246 ORIG_RAX: > > 000000000000004b > > [55584.923174] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: > > 00007f1db3fc85f0 > > [55584.923568] RDX: 00007f1db4aa6060 RSI: 0000000000000003 RDI: > > 0000000000000001 > > [55584.923982] RBP: 0000000000000001 R08: 0000000000000000 R09: > > 0000000081c492ca > > [55584.924378] R10: 0000000000000008 R11: 0000000000000246 R12: > > 0000000000000028 > > [55584.924774] R13: 00007ffe6f827e40 R14: 0000000000000000 R15: > > 0000000000000000 > > [55705.736285] INFO: task rsync:9830 blocked for more than 1087 seconds. > > [55705.736999] Not tainted 5.3.0-rc8 #1 > > [55705.737694] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" > > disables this message. > > [55705.738411] rsync D 0 9830 9829 0x00004002 > > [55705.739072] Call Trace: > > [55705.739455] ? __schedule+0x3cf/0x680 > > [55705.739837] ? bit_wait+0x50/0x50 > > [55705.740215] schedule+0x39/0xa0 > > [55705.740610] io_schedule+0x12/0x40 > > [55705.741243] bit_wait_io+0xd/0x50 > > [55705.741897] __wait_on_bit+0x66/0x90 > > [55705.742524] ? bit_wait+0x50/0x50 > > [55705.743131] out_of_line_wait_on_bit+0x8b/0xb0 > > [55705.743750] ? init_wait_var_entry+0x40/0x40 > > [55705.744128] lock_extent_buffer_for_io+0x10b/0x2c0 [btrfs] > > [55705.744766] btree_write_cache_pages+0x17d/0x350 [btrfs] > > [55705.745440] ? btrfs_set_token_32+0x72/0x130 [btrfs] > > [55705.746118] ? merge_state.part.47+0x3f/0x160 [btrfs] > > [55705.746753] do_writepages+0x1a/0x60 > > [55705.747411] __filemap_fdatawrite_range+0xc8/0x100 > > [55705.748106] ? convert_extent_bit+0x2e8/0x580 [btrfs] > > [55705.748807] btrfs_write_marked_extents+0x141/0x160 [btrfs] > > [55705.749495] btrfs_write_and_wait_transaction.isra.26+0x58/0xb0 [btrfs] > > [55705.750190] ? btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55705.750890] btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55705.751580] ? btrfs_log_dentry_safe+0x54/0x70 [btrfs] > > [55705.752293] btrfs_sync_file+0x395/0x3e0 [btrfs] > > [55705.752981] ? retarget_shared_pending+0x70/0x70 > > [55705.753686] do_fsync+0x38/0x60 > > [55705.754340] __x64_sys_fdatasync+0x13/0x20 > > [55705.755012] do_syscall_64+0x55/0x1a0 > > [55705.755678] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > [55705.756375] RIP: 0033:0x7f1db3fc85f0 > > [55705.757042] Code: Bad RIP value. > > [55705.757690] RSP: 002b:00007ffe6f827db8 EFLAGS: 00000246 ORIG_RAX: > > 000000000000004b > > [55705.758300] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: > > 00007f1db3fc85f0 > > [55705.758678] RDX: 00007f1db4aa6060 RSI: 0000000000000003 RDI: > > 0000000000000001 > > [55705.759107] RBP: 0000000000000001 R08: 0000000000000000 R09: > > 0000000081c492ca > > [55705.759785] R10: 0000000000000008 R11: 0000000000000246 R12: > > 0000000000000028 > > [55705.760471] R13: 00007ffe6f827e40 R14: 0000000000000000 R15: > > 0000000000000000 > > [55826.570182] INFO: task rsync:9830 blocked for more than 1208 seconds. > > [55826.571349] Not tainted 5.3.0-rc8 #1 > > [55826.572469] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" > > disables this message. > > [55826.573618] rsync D 0 9830 9829 0x00004002 > > [55826.574790] Call Trace: > > [55826.575932] ? __schedule+0x3cf/0x680 > > [55826.577079] ? bit_wait+0x50/0x50 > > [55826.578233] schedule+0x39/0xa0 > > [55826.579350] io_schedule+0x12/0x40 > > [55826.580451] bit_wait_io+0xd/0x50 > > [55826.581527] __wait_on_bit+0x66/0x90 > > [55826.582596] ? bit_wait+0x50/0x50 > > [55826.583178] out_of_line_wait_on_bit+0x8b/0xb0 > > [55826.583550] ? init_wait_var_entry+0x40/0x40 > > [55826.583953] lock_extent_buffer_for_io+0x10b/0x2c0 [btrfs] > > [55826.584356] btree_write_cache_pages+0x17d/0x350 [btrfs] > > [55826.584755] ? btrfs_set_token_32+0x72/0x130 [btrfs] > > [55826.585155] ? merge_state.part.47+0x3f/0x160 [btrfs] > > [55826.585547] do_writepages+0x1a/0x60 > > [55826.585937] __filemap_fdatawrite_range+0xc8/0x100 > > [55826.586352] ? convert_extent_bit+0x2e8/0x580 [btrfs] > > [55826.586761] btrfs_write_marked_extents+0x141/0x160 [btrfs] > > [55826.587171] btrfs_write_and_wait_transaction.isra.26+0x58/0xb0 [btrfs] > > [55826.587581] ? btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55826.587990] btrfs_commit_transaction+0x752/0x9d0 [btrfs] > > [55826.588406] ? btrfs_log_dentry_safe+0x54/0x70 [btrfs] > > [55826.588818] btrfs_sync_file+0x395/0x3e0 [btrfs] > > [55826.589219] ? retarget_shared_pending+0x70/0x70 > > [55826.589617] do_fsync+0x38/0x60 > > [55826.590011] __x64_sys_fdatasync+0x13/0x20 > > [55826.590411] do_syscall_64+0x55/0x1a0 > > [55826.590798] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > [55826.591185] RIP: 0033:0x7f1db3fc85f0 > > [55826.591572] Code: Bad RIP value. > > [55826.591952] RSP: 002b:00007ffe6f827db8 EFLAGS: 00000246 ORIG_RAX: > > 000000000000004b > > [55826.592347] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: > > 00007f1db3fc85f0 > > [55826.592743] RDX: 00007f1db4aa6060 RSI: 0000000000000003 RDI: > > 0000000000000001 > > [55826.593143] RBP: 0000000000000001 R08: 0000000000000000 R09: > > 0000000081c492ca > > [55826.593543] R10: 0000000000000008 R11: 0000000000000246 R12: > > 0000000000000028 > > [55826.593941] R13: 00007ffe6f827e40 R14: 0000000000000000 R15: > > 0000000000000000 > > > > > > Greets, > > Stefan > > -- > Michal Hocko > SUSE Labs
