unfortunately i was wrong. rc4 does not fix this issue for me when
rsyncing large amounts of data...
my mount options:
mount -o loop,compress=zlib,compress-force btrfs_test /storage/btrfs
the filesystem is a file on a raid5 xfs volume.
[15481.098588] INFO: task loop0:1729 blocked for more than 120 seconds.
[15481.099571] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[15481.100564] loop0 D 000000010044b6c5 0 1729 2
0x00000000
[15481.101550] ffff8801f9b31b30 0000000000000046 0000000000000000
0000000000000000
[15481.102548] ffff880200950e40 ffff8801f9b31fd8 ffff8801f9b31fd8
ffff8801f9b31fd8
[15481.103539] ffff880202cb7200 ffff880200950e40 0000000000000002
ffff8801f9b31b78
[15481.104533] Call Trace:
[15481.105531] [<ffffffff81101a55>] ? find_get_pages_tag+0x125/0x150
[15481.106541] [<ffffffff8110e205>] ? pagevec_lookup_tag+0x25/0x40
[15481.107552] [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[15481.108576] [<ffffffff8108f14d>] ? ktime_get_ts+0xad/0xe0
[15481.109592] [<ffffffff81101d60>] ? __lock_page+0x70/0x70
[15481.110607] [<ffffffff814140bf>] schedule+0x3f/0x60
[15481.111619] [<ffffffff8141416f>] io_schedule+0x8f/0xd0
[15481.112641] [<ffffffff81101d6e>] sleep_on_page+0xe/0x20
[15481.113639] [<ffffffff8141491f>] __wait_on_bit+0x5f/0x90
[15481.114629] [<ffffffff81101f58>] wait_on_page_bit+0x78/0x80
[15481.115628] [<ffffffff81085790>] ?
autoremove_wake_function+0x40/0x40
[15481.116614] [<ffffffff811020cc>] filemap_fdatawait_range+0x10c/0x1a0
[15481.117613] [<ffffffff811030c8>]
filemap_write_and_wait_range+0x68/0x80
[15481.118630] [<ffffffffa03a7234>] xfs_file_fsync+0x54/0x340 [xfs]
[15481.119629] [<ffffffff8119148b>] vfs_fsync+0x2b/0x40
[15481.120627] [<ffffffffa04dacf2>] do_bio_filebacked+0x1b2/0x320
[loop]
[15481.121645] [<ffffffffa050efac>] ? end_workqueue_bio+0x9c/0xa0
[btrfs]
[15481.122668] [<ffffffffa04daf1b>] loop_thread+0xbb/0x260 [loop]
[15481.123674] [<ffffffff81085750>] ? abort_exclusive_wait+0xb0/0xb0
[15481.124676] [<ffffffffa04dae60>] ? do_bio_filebacked+0x320/0x320
[loop]
[15481.125698] [<ffffffff81084e0c>] kthread+0x8c/0xa0
[15481.126710] [<ffffffff81419a34>] kernel_thread_helper+0x4/0x10
[15481.127721] [<ffffffff81084d80>] ? kthread_worker_fn+0x190/0x190
[15481.128742] [<ffffffff81419a30>] ? gs_change+0x13/0x13
[15481.129728] INFO: task btrfs-transacti:1756 blocked for more than
120 seconds.
[15481.130706] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[15481.131702] btrfs-transacti D ffff8801f9ab7200 0 1756 2
0x00000000
[15481.132723] ffff8801e7533bc0 0000000000000046 ffff88020fc93400
0000000000000002
[15481.133744] ffff8801f9ab7200 ffff8801e7533fd8 ffff8801e7533fd8
ffff8801e7533fd8
[15481.134771] ffff880200950e40 ffff8801f9ab7200 ffff8801e7533b10
0000000081051ae2
[15481.135813] Call Trace:
[15481.136828] [<ffffffff8105ad36>] ?
ttwu_do_activate.constprop.172+0x66/0x70
[15481.137863] [<ffffffff8105bd6e>] ? try_to_wake_up+0x1de/0x290
[15481.138914] [<ffffffff814140bf>] schedule+0x3f/0x60
[15481.139956] [<ffffffff814147d5>] schedule_timeout+0x305/0x390
[15481.141007] [<ffffffff8104d003>] ? __wake_up+0x53/0x70
[15481.142074] [<ffffffff81413348>] wait_for_common+0xc8/0x160
[15481.143124] [<ffffffff8105be20>] ? try_to_wake_up+0x290/0x290
[15481.144170] [<ffffffff814133fd>] wait_for_completion+0x1d/0x20
[15481.145229] [<ffffffffa050f0bb>] write_dev_flush+0x4b/0x140 [btrfs]
[15481.146275] [<ffffffffa0511086>] write_all_supers+0x6f6/0x800
[btrfs]
[15481.147317] [<ffffffffa05111a3>] write_ctree_super+0x13/0x20 [btrfs]
[15481.148354] [<ffffffffa05164dd>]
btrfs_commit_transaction+0x63d/0x880 [btrfs]
[15481.149397] [<ffffffff81085750>] ? abort_exclusive_wait+0xb0/0xb0
[15481.150416] [<ffffffffa0516b74>] ? start_transaction+0x94/0x2b0
[btrfs]
[15481.151444] [<ffffffffa050ed4d>] transaction_kthread+0x26d/0x290
[btrfs]
[15481.152492] [<ffffffffa050eae0>] ? btrfs_congested_fn+0xd0/0xd0
[btrfs]
[15481.153519] [<ffffffff81084e0c>] kthread+0x8c/0xa0
[15481.154542] [<ffffffff81419a34>] kernel_thread_helper+0x4/0x10
[15481.155553] [<ffffffff81084d80>] ? kthread_worker_fn+0x190/0x190
[15481.156522] [<ffffffff81419a30>] ? gs_change+0x13/0x13
[15481.157501] INFO: task smbd:2058 blocked for more than 120 seconds.
[15481.158513] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[15481.159519] smbd D 000000010044b8d7 0 2058 823
0x00000004
[15481.160544] ffff88005cf37a08 0000000000000082 ffff88005cf37938
ffffffff81371188
[15481.161588] ffff8802012e63c0 ffff88005cf37fd8 ffff88005cf37fd8
ffff88005cf37fd8
[15481.162658] ffff880202d21c80 ffff8802012e63c0 ffff8802012769c0
0000000000000246
[15481.163708] Call Trace:
[15481.164736] [<ffffffff81371188>] ? sch_direct_xmit+0x68/0x1d0
[15481.165781] [<ffffffff81355a00>] ? dev_queue_xmit+0x200/0x680
[15481.166805] [<ffffffff81389200>] ? ip_forward_options+0x1c0/0x1c0
[15481.167822] [<ffffffff8138adbe>] ? ip_finish_output+0x18e/0x310
[15481.168850] [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[15481.169853] [<ffffffff8108f14d>] ? ktime_get_ts+0xad/0xe0
[15481.170849] [<ffffffff81101d60>] ? __lock_page+0x70/0x70
[15481.171858] [<ffffffff814140bf>] schedule+0x3f/0x60
[15481.172851] [<ffffffff8141416f>] io_schedule+0x8f/0xd0
[15481.173844] [<ffffffff81101d6e>] sleep_on_page+0xe/0x20
[15481.174836] [<ffffffff8141491f>] __wait_on_bit+0x5f/0x90
[15481.175845] [<ffffffff81101f58>] wait_on_page_bit+0x78/0x80
[15481.176842] [<ffffffff81085790>] ?
autoremove_wake_function+0x40/0x40
[15481.177845] [<ffffffff81102845>]
grab_cache_page_write_begin+0x95/0xe0
[15481.178872] [<ffffffffa03a1150>] ? xfs_get_blocks_direct+0x20/0x20
[xfs]
[15481.179888] [<ffffffff811967b8>] block_write_begin+0x38/0xa0
[15481.180904] [<ffffffffa03a1213>] xfs_vm_write_begin+0x43/0x70 [xfs]
[15481.181928] [<ffffffff8110233c>]
generic_file_buffered_write+0x10c/0x270
[15481.182955] [<ffffffffa03aad66>] ? xfs_iunlock+0x116/0x180 [xfs]
[15481.183979] [<ffffffffa03a7fef>]
xfs_file_buffered_aio_write+0x10f/0x200 [xfs]
[15481.185011] [<ffffffffa03a8252>] xfs_file_aio_write+0x172/0x2a0
[xfs]
[15481.186052] [<ffffffff81162d62>] do_sync_write+0xd2/0x110
[15481.187073] [<ffffffff811f0fcc>] ?
security_file_permission+0x2c/0xb0
[15481.188096] [<ffffffff81163311>] ? rw_verify_area+0x61/0xf0
[15481.189127] [<ffffffff8116366f>] vfs_write+0xaf/0x180
[15481.190141] [<ffffffff81163b12>] sys_pwrite64+0x82/0xb0
[15481.191149] [<ffffffff814178c2>] system_call_fastpath+0x16/0x1b
[15481.192171] INFO: task kworker/2:3:3713 blocked for more than 120
seconds.
[15481.193191] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[15481.194224] kworker/2:3 D 0000000000000000 0 3713 2
0x00000000
[15481.195273] ffff880005d49cc0 0000000000000046 0000000246417c40
0000000800000000
[15481.196304] ffff8802013eaac0 ffff880005d49fd8 ffff880005d49fd8
ffff880005d49fd8
[15481.197329] ffff8802013eeae0 ffff8802013eaac0 ffff880005d49c20
ffffffffa03a3fcb
[15481.198345] Call Trace:
[15481.199365] [<ffffffffa03a3fcb>] ? xfs_buf_iorequest+0x6b/0x100
[xfs]
[15481.200393] [<ffffffffa03fa603>] ? xlog_bdstrat+0x23/0x60 [xfs]
[15481.201408] [<ffffffffa03fb287>] ? xlog_sync+0x1d7/0x3c0 [xfs]
[15481.202419] [<ffffffff814140bf>] schedule+0x3f/0x60
[15481.203418] [<ffffffffa03fe62b>] _xfs_log_force_lsn+0x29b/0x2d0
[xfs]
[15481.204420] [<ffffffff8105be20>] ? try_to_wake_up+0x290/0x290
[15481.205438] [<ffffffffa03fa23b>] xfs_trans_commit+0x29b/0x2b0 [xfs]
[15481.206450] [<ffffffffa03b4c60>] ? xfs_sync_inode_attr+0xf0/0xf0
[xfs]
[15481.207466] [<ffffffffa03aa162>] xfs_fs_log_dummy+0x62/0x90 [xfs]
[15481.208486] [<ffffffff8111ff90>] ? refresh_cpu_vm_stats+0x1a0/0x1a0
[15481.209504] [<ffffffffa03b4ce4>] xfs_sync_worker+0x84/0x90 [xfs]
[15481.210518] [<ffffffff8107f446>] process_one_work+0x116/0x4d0
[15481.211531] [<ffffffff8107fdde>] worker_thread+0x15e/0x350
[15481.212559] [<ffffffff8107fc80>] ?
manage_workers.isra.29+0x230/0x230
[15481.213573] [<ffffffff81084e0c>] kthread+0x8c/0xa0
[15481.214577] [<ffffffff81419a34>] kernel_thread_helper+0x4/0x10
[15481.215596] [<ffffffff81084d80>] ? kthread_worker_fn+0x190/0x190
[15481.216600] [<ffffffff81419a30>] ? gs_change+0x13/0x13
[15601.215172] INFO: task xfsbufd/md127:527 blocked for more than 120
seconds.
[15601.216198] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[15601.217226] xfsbufd/md127 D 00000001004562e8 0 527 2
0x00000000
[15601.218264] ffff8801f912fab0 0000000000000046 0000000100000000
0000000300000001
[15601.219326] ffff8802009dc740 ffff8801f912ffd8 ffff8801f912ffd8
ffff8801f912ffd8
[15601.220375] ffffffff8180d020 ffff8802009dc740 ffff8801f912fa10
ffffffff8104d003
[15601.221411] Call Trace:
[15601.222441] [<ffffffff8104d003>] ? __wake_up+0x53/0x70
[15601.223461] [<ffffffff8114d48b>] ? kfree+0x3b/0x170
[15601.224479] [<ffffffffa01c732b>] ? plugger_unplug+0x3b/0x50 [md_mod]
[15601.225507] [<ffffffff8121b457>] ? blk_flush_plug_list+0xa7/0x250
[15601.226516] [<ffffffff814140bf>] schedule+0x3f/0x60
[15601.227516] [<ffffffffa0378209>] get_active_stripe+0x2e9/0x600
[raid456]
[15601.228540] [<ffffffff8105be20>] ? try_to_wake_up+0x290/0x290
[15601.229552] [<ffffffffa037be22>] make_request+0x192/0x430 [raid456]
[15601.230569] [<ffffffff81085750>] ? abort_exclusive_wait+0xb0/0xb0
[15601.231588] [<ffffffffa01c964a>] md_make_request+0xfa/0x240 [md_mod]
[15601.232628] [<ffffffff811047a5>] ? mempool_alloc_slab+0x15/0x20
[15601.233654] [<ffffffff81219917>] generic_make_request+0xc7/0x100
[15601.234682] [<ffffffff812199d7>] submit_bio+0x87/0x110
[15601.235731] [<ffffffffa03a3e6c>] _xfs_buf_ioapply+0x15c/0x1c0 [xfs]
[15601.236772] [<ffffffffa03a4d75>] ? xfs_bdstrat_cb+0x65/0x120 [xfs]
[15601.237815] [<ffffffffa03a3fb9>] xfs_buf_iorequest+0x59/0x100 [xfs]
[15601.238874] [<ffffffffa03a4d75>] xfs_bdstrat_cb+0x65/0x120 [xfs]
[15601.239916] [<ffffffffa03a4f3e>] xfsbufd+0x10e/0x170 [xfs]
[15601.240949] [<ffffffff8105be32>] ? default_wake_function+0x12/0x20
[15601.241995] [<ffffffffa03a4e30>] ? xfs_bdstrat_cb+0x120/0x120 [xfs]
[15601.243026] [<ffffffff81084e0c>] kthread+0x8c/0xa0
[15601.244051] [<ffffffff81419a34>] kernel_thread_helper+0x4/0x10
[15601.245076] [<ffffffff81084d80>] ? kthread_worker_fn+0x190/0x190
[15601.246114] [<ffffffff81419a30>] ? gs_change+0x13/0x13
[15601.247129] INFO: task md127_resync:529 blocked for more than 120
seconds.
[15601.248156] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[15601.249209] md127_resync D 00000001004562fa 0 529 2
0x00000000
[15601.250259] ffff8801f9073b80 0000000000000046 0000000100000000
ffffffff81233ce7
[15601.251316] ffff8802013e8720 ffff8801f9073fd8 ffff8801f9073fd8
ffff8801f9073fd8
[15601.252392] ffff880202cb4e60 ffff8802013e8720 ffff880200b70138
ffff880004bff300
[15601.253459] Call Trace:
[15601.254516] [<ffffffff81233ce7>] ? kobject_put+0x27/0x60
[15601.255590] [<ffffffff8121b913>] ? blk_queue_bio+0x2c3/0x410
[15601.256642] [<ffffffff814171a6>] ? retint_kernel+0x26/0x30
[15601.257679] [<ffffffff814140bf>] schedule+0x3f/0x60
[15601.258721] [<ffffffffa0378209>] get_active_stripe+0x2e9/0x600
[raid456]
[15601.259756] [<ffffffff8105be20>] ? try_to_wake_up+0x290/0x290
[15601.260792] [<ffffffffa037559a>] sync_request+0x35a/0x370 [raid456]
[15601.261838] [<ffffffffa01c9a08>] ? is_mddev_idle+0x128/0x140
[md_mod]
[15601.262867] [<ffffffffa01cd2bf>] md_do_sync+0x7ff/0xc70 [md_mod]
[15601.263895] [<ffffffff81085750>] ? abort_exclusive_wait+0xb0/0xb0
[15601.264926] [<ffffffff810748cb>] ? recalc_sigpending+0x1b/0x50
[15601.265972] [<ffffffffa01c9dce>] md_thread+0x10e/0x140 [md_mod]
[15601.267002] [<ffffffffa01c9cc0>] ? md_register_thread+0x110/0x110
[md_mod]
[15601.268033] [<ffffffff81084e0c>] kthread+0x8c/0xa0
[15601.269074] [<ffffffff81419a34>] kernel_thread_helper+0x4/0x10
[15601.270103] [<ffffffff81084d80>] ? kthread_worker_fn+0x190/0x190
[15601.271132] [<ffffffff81419a30>] ? gs_change+0x13/0x13
[15601.272170] INFO: task loop0:1729 blocked for more than 120 seconds.
[15601.273202] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[15601.274249] loop0 D 000000010044b6c5 0 1729 2
0x00000000
[15601.275320] ffff8801f9b31b30 0000000000000046 0000000000000000
0000000000000000
[15601.276385] ffff880200950e40 ffff8801f9b31fd8 ffff8801f9b31fd8
ffff8801f9b31fd8
[15601.277454] ffff880202cb7200 ffff880200950e40 0000000000000002
ffff8801f9b31b78
[15601.278536] Call Trace:
[15601.279594] [<ffffffff81101a55>] ? find_get_pages_tag+0x125/0x150
[15601.280671] [<ffffffff8110e205>] ? pagevec_lookup_tag+0x25/0x40
[15601.281736] [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[15601.282801] [<ffffffff8108f14d>] ? ktime_get_ts+0xad/0xe0
[15601.283840] [<ffffffff81101d60>] ? __lock_page+0x70/0x70
[15601.284870] [<ffffffff814140bf>] schedule+0x3f/0x60
[15601.285902] [<ffffffff8141416f>] io_schedule+0x8f/0xd0
[15601.286919] [<ffffffff81101d6e>] sleep_on_page+0xe/0x20
[15601.287924] [<ffffffff8141491f>] __wait_on_bit+0x5f/0x90
[15601.288938] [<ffffffff81101f58>] wait_on_page_bit+0x78/0x80
[15601.289944] [<ffffffff81085790>] ?
autoremove_wake_function+0x40/0x40
[15601.290953] [<ffffffff811020cc>] filemap_fdatawait_range+0x10c/0x1a0
[15601.291972] [<ffffffff811030c8>]
filemap_write_and_wait_range+0x68/0x80
[15601.292985] [<ffffffffa03a7234>] xfs_file_fsync+0x54/0x340 [xfs]
[15601.293993] [<ffffffff8119148b>] vfs_fsync+0x2b/0x40
[15601.294993] [<ffffffffa04dacf2>] do_bio_filebacked+0x1b2/0x320
[loop]
[15601.296022] [<ffffffffa050efac>] ? end_workqueue_bio+0x9c/0xa0
[btrfs]
[15601.297029] [<ffffffffa04daf1b>] loop_thread+0xbb/0x260 [loop]
[15601.298032] [<ffffffff81085750>] ? abort_exclusive_wait+0xb0/0xb0
[15601.299049] [<ffffffffa04dae60>] ? do_bio_filebacked+0x320/0x320
[loop]
[15601.300057] [<ffffffff81084e0c>] kthread+0x8c/0xa0
[15601.301063] [<ffffffff81419a34>] kernel_thread_helper+0x4/0x10
[15601.302084] [<ffffffff81084d80>] ? kthread_worker_fn+0x190/0x190
[15601.303093] [<ffffffff81419a30>] ? gs_change+0x13/0x13
[15601.304098] INFO: task btrfs-transacti:1756 blocked for more than
120 seconds.
[15601.305126] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[15601.306162] btrfs-transacti D ffff8801f9ab7200 0 1756 2
0x00000000
[15601.307205] ffff8801e7533bc0 0000000000000046 ffff88020fc93400
0000000000000002
[15601.308257] ffff8801f9ab7200 ffff8801e7533fd8 ffff8801e7533fd8
ffff8801e7533fd8
[15601.309327] ffff880200950e40 ffff8801f9ab7200 ffff8801e7533b10
0000000081051ae2
[15601.310384] Call Trace:
[15601.311427] [<ffffffff8105ad36>] ?
ttwu_do_activate.constprop.172+0x66/0x70
[15601.312509] [<ffffffff8105bd6e>] ? try_to_wake_up+0x1de/0x290
[15601.313568] [<ffffffff814140bf>] schedule+0x3f/0x60
[15601.314612] [<ffffffff814147d5>] schedule_timeout+0x305/0x390
[15601.315658] [<ffffffff8104d003>] ? __wake_up+0x53/0x70
[15601.316680] [<ffffffff81413348>] wait_for_common+0xc8/0x160
[15601.317699] [<ffffffff8105be20>] ? try_to_wake_up+0x290/0x290
[15601.318730] [<ffffffff814133fd>] wait_for_completion+0x1d/0x20
[15601.319745] [<ffffffffa050f0bb>] write_dev_flush+0x4b/0x140 [btrfs]
[15601.320760] [<ffffffffa0511086>] write_all_supers+0x6f6/0x800
[btrfs]
[15601.321791] [<ffffffffa05111a3>] write_ctree_super+0x13/0x20 [btrfs]
[15601.322809] [<ffffffffa05164dd>]
btrfs_commit_transaction+0x63d/0x880 [btrfs]
[15601.323831] [<ffffffff81085750>] ? abort_exclusive_wait+0xb0/0xb0
[15601.324855] [<ffffffffa0516b74>] ? start_transaction+0x94/0x2b0
[btrfs]
[15601.325894] [<ffffffffa050ed4d>] transaction_kthread+0x26d/0x290
[btrfs]
[15601.326918] [<ffffffffa050eae0>] ? btrfs_congested_fn+0xd0/0xd0
[btrfs]
[15601.327937] [<ffffffff81084e0c>] kthread+0x8c/0xa0
[15601.328963] [<ffffffff81419a34>] kernel_thread_helper+0x4/0x10
[15601.329979] [<ffffffff81084d80>] ? kthread_worker_fn+0x190/0x190
[15601.330995] [<ffffffff81419a30>] ? gs_change+0x13/0x13
[15601.332024] INFO: task flush-9:127:1891 blocked for more than 120
seconds.
[15601.333049] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[15601.334083] flush-9:127 D 00000000a01fc200 0 1891 2
0x00000000
[15601.335141] ffff880171771540 0000000000000046 0000000100000000
0000000300000001
[15601.336194] ffff8802009d9c80 ffff880171771fd8 ffff880171771fd8
ffff880171771fd8
[15601.337252] ffff8802009dc740 ffff8802009d9c80 ffff8801717714a0
ffffffff8104d003
[15601.338304] Call Trace:
[15601.339347] [<ffffffff8104d003>] ? __wake_up+0x53/0x70
[15601.340376] [<ffffffff8114d48b>] ? kfree+0x3b/0x170
[15601.341398] [<ffffffffa01c732b>] ? plugger_unplug+0x3b/0x50 [md_mod]
[15601.342432] [<ffffffff8121b457>] ? blk_flush_plug_list+0xa7/0x250
[15601.343453] [<ffffffff814140bf>] schedule+0x3f/0x60
[15601.344460] [<ffffffffa0378209>] get_active_stripe+0x2e9/0x600
[raid456]
[15601.345487] [<ffffffffa01c6400>] ? md_wakeup_thread+0x10/0x30
[md_mod]
[15601.346503] [<ffffffff8105be20>] ? try_to_wake_up+0x290/0x290
[15601.347519] [<ffffffffa037be22>] make_request+0x192/0x430 [raid456]
[15601.348555] [<ffffffff81085750>] ? abort_exclusive_wait+0xb0/0xb0
[15601.348559] [<ffffffffa01c964a>] md_make_request+0xfa/0x240 [md_mod]
[15601.348561] [<ffffffff81219917>] generic_make_request+0xc7/0x100
[15601.348563] [<ffffffff812199d7>] submit_bio+0x87/0x110
[15601.348565] [<ffffffff8118b300>] ? __mark_inode_dirty+0x40/0x230
[15601.348571] [<ffffffffa03a16f7>]
xfs_submit_ioend_bio.isra.11+0x57/0x80 [xfs]
[15601.348578] [<ffffffffa03a180e>] xfs_submit_ioend+0xee/0x110 [xfs]
[15601.348585] [<ffffffffa03a1a65>] xfs_vm_writepage+0x235/0x530 [xfs]
[15601.348588] [<ffffffff8110b75a>] __writepage+0x1a/0x50
[15601.348591] [<ffffffff8110bc21>] write_cache_pages+0x1e1/0x4e0
[15601.348599] [<ffffffffa03bab27>] ? kmem_alloc+0x67/0xe0 [xfs]
[15601.348602] [<ffffffff8110b740>] ? bdi_set_max_ratio+0x90/0x90
[15601.348606] [<ffffffff8110bf6d>] generic_writepages+0x4d/0x70
[15601.348612] [<ffffffffa03a06ad>] xfs_vm_writepages+0x4d/0x60 [xfs]
[15601.348615] [<ffffffff8110d6a4>] do_writepages+0x24/0x40
[15601.348618] [<ffffffff8118b76f>] writeback_single_inode+0x10f/0x3f0
[15601.348621] [<ffffffff8118be4a>] writeback_sb_inodes+0x1aa/0x270
[15601.348624] [<ffffffff8118bfae>] __writeback_inodes_wb+0x9e/0xd0
[15601.348627] [<ffffffff8118c5cb>] wb_writeback+0x37b/0x3b0
[15601.348631] [<ffffffff8117d562>] ? get_nr_inodes+0x52/0x70
[15601.348634] [<ffffffff8117e262>] ? get_nr_dirty_inodes+0x52/0x80
[15601.348636] [<ffffffff8118c69f>] wb_check_old_data_flush+0x9f/0xb0
[15601.348639] [<ffffffff8118db7c>] wb_do_writeback+0x19c/0x230
[15601.348642] [<ffffffff81414643>] ? schedule_timeout+0x173/0x390
[15601.348645] [<ffffffff81071b10>] ?
init_timer_deferrable_key+0x30/0x30
[15601.348648] [<ffffffff8118dc9c>] bdi_writeback_thread+0x8c/0x340
[15601.348651] [<ffffffff8118dc10>] ? wb_do_writeback+0x230/0x230
[15601.348654] [<ffffffff81084e0c>] kthread+0x8c/0xa0
[15601.348657] [<ffffffff81419a34>] kernel_thread_helper+0x4/0x10
[15601.348660] [<ffffffff81084d80>] ? kthread_worker_fn+0x190/0x190
[15601.348663] [<ffffffff81419a30>] ? gs_change+0x13/0x13
[15601.348665] INFO: task smbd:2058 blocked for more than 120 seconds.
[15601.348667] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[15601.348669] smbd D 000000010044b8d7 0 2058 823
0x00000004
[15601.348672] ffff88005cf37a08 0000000000000082 ffff88005cf37938
ffffffff81371188
[15601.348676] ffff8802012e63c0 ffff88005cf37fd8 ffff88005cf37fd8
ffff88005cf37fd8
[15601.348680] ffff880202d21c80 ffff8802012e63c0 ffff8802012769c0
0000000000000246
[15601.348684] Call Trace:
[15601.348687] [<ffffffff81371188>] ? sch_direct_xmit+0x68/0x1d0
[15601.348691] [<ffffffff81355a00>] ? dev_queue_xmit+0x200/0x680
[15601.348694] [<ffffffff81389200>] ? ip_forward_options+0x1c0/0x1c0
[15601.348697] [<ffffffff8138adbe>] ? ip_finish_output+0x18e/0x310
[15601.348700] [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[15601.348703] [<ffffffff8108f14d>] ? ktime_get_ts+0xad/0xe0
[15601.348705] [<ffffffff81101d60>] ? __lock_page+0x70/0x70
[15601.348708] [<ffffffff814140bf>] schedule+0x3f/0x60
[15601.348711] [<ffffffff8141416f>] io_schedule+0x8f/0xd0
[15601.348714] [<ffffffff81101d6e>] sleep_on_page+0xe/0x20
[15601.348716] [<ffffffff8141491f>] __wait_on_bit+0x5f/0x90
[15601.348719] [<ffffffff81101f58>] wait_on_page_bit+0x78/0x80
[15601.348722] [<ffffffff81085790>] ?
autoremove_wake_function+0x40/0x40
[15601.348725] [<ffffffff81102845>]
grab_cache_page_write_begin+0x95/0xe0
[15601.348732] [<ffffffffa03a1150>] ? xfs_get_blocks_direct+0x20/0x20
[xfs]
[15601.348736] [<ffffffff811967b8>] block_write_begin+0x38/0xa0
[15601.348743] [<ffffffffa03a1213>] xfs_vm_write_begin+0x43/0x70 [xfs]
[15601.348746] [<ffffffff8110233c>]
generic_file_buffered_write+0x10c/0x270
[15601.348754] [<ffffffffa03aad66>] ? xfs_iunlock+0x116/0x180 [xfs]
[15601.348761] [<ffffffffa03a7fef>]
xfs_file_buffered_aio_write+0x10f/0x200 [xfs]
[15601.348768] [<ffffffffa03a8252>] xfs_file_aio_write+0x172/0x2a0
[xfs]
[15601.348772] [<ffffffff81162d62>] do_sync_write+0xd2/0x110
[15601.348775] [<ffffffff811f0fcc>] ?
security_file_permission+0x2c/0xb0
[15601.348778] [<ffffffff81163311>] ? rw_verify_area+0x61/0xf0
[15601.348781] [<ffffffff8116366f>] vfs_write+0xaf/0x180
[15601.348784] [<ffffffff81163b12>] sys_pwrite64+0x82/0xb0
[15601.348787] [<ffffffff814178c2>] system_call_fastpath+0x16/0x1b
On Σάββατο, 3 Δεκέμβριος 2011 2:35:50 πμ, Konstantinos Skarlatos wrote:
After about 1TB of rsyncs from multiple servers at the same time, plus
some heavy filesystem loading, i believe that 3.2rc4 solves the
problem for me. Now if only we had deduplication and an fsck tool :)
On Παρασκευή, 2 Δεκέμβριος 2011 9:53:10 μμ, Konstantinos Skarlatos wrote:
I see they got into 3.2rc4, so I am now compiling it. I will report
back in a few hours
On Παρασκευή, 2 Δεκέμβριος 2011 5:48:31 μμ, Tobias wrote:
Am 02.12.2011 16:22, schrieb Konstantinos Skarlatos:
So, the transaction close is in btrfs_evict_inode, which sounds
like a
deadlock recently fixed by this commit:
http://git.kernel.org/?p=linux/kernel/git/mason/linux-btrfs.git;a=commit;h=aa38a711a893accf5b5192f3d705a120deaa81e0
If you pull the for-linus branch from today, hopefully the
problem will
be gone.
This looks very good. With this Kernel i still have some hangs,
but only in rsync, only under high load and they don't lock up the
system - so i guess it's ok now.
I still have hangs and lock ups under the same situation (rsync of
many files) under 3.2rc3. rc3 made the hang appear after 200gb of
files, while in rc2 i had hangs after only 11gb .
Yes, i had them too in 3.2rc3! The problem where solved with patches
from the "btrfs-for-linus" -branch. (see link above).
Tobias
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