From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konstantinos Skarlatos Subject: Re: Blocked for more than 120 seconds Date: Sun, 25 Dec 2011 03:06:56 +0200 Message-ID: <4EF67730.5050108@gmail.com> References: <4ED5FAEF.8070400@robotech.de> <20111130141006.GY24338@shiny> <4ED738E5.3080200@robotech.de> <20111201184158.GB10535@shiny> <4ED8D6C8.4020609@robotech.de> <4ED8ED36.3080105@gmail.com> <4ED8F34F.8090609@robotech.de> <4ED92CA6.3030302@gmail.com> <4ED96EE6.2010308@gmail.com> <4EDA33FC.5020206@gmail.com> <20111205131252.GB26622@shiny> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Cc: Tobias , linux-btrfs@vger.kernel.org To: Chris Mason Return-path: In-Reply-To: <20111205131252.GB26622@shiny> List-ID: I got the same message on a new btrfs filesystem on a raid5 volume=20 (without loop this time). kernel is 3.2rc6 this happened after a day of rsyncing at about 10mbyte/sec, only way to= =20 reboot is with echo b > /proc/sysrq-trigger [181201.285259] INFO: task btrfs-submit-1:768 blocked for more than 120= =20 seconds. [181201.285297] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"=20 disables this message. [181201.285332] btrfs-submit-1 D 0000000021102920 0 768 2=20 0x00000000 [181201.285368] ffff88006d1b7aa0 0000000000000046 0000000100000000=20 0000000300000001 [181201.285406] ffff880072c64020 ffff88006d1b7fd8 ffff88006d1b7fd8=20 ffff88006d1b7fd8 [181201.285443] ffff88006d900000 ffff880072c64020 ffff88006d1b7a00=20 ffffffff8104e053 [181201.285481] Call Trace: [181201.285498] [] ? __wake_up+0x53/0x70 [181201.285524] [] ? kfree+0x3b/0x170 [181201.285552] [] ? plugger_unplug+0x3b/0x50=20 [md_mod] [181201.285583] [] ? blk_flush_plug_list+0xa7/0x250 [181201.285612] [] schedule+0x3f/0x60 [181201.285637] [] get_active_stripe+0x2e9/0x600=20 [raid456] [181201.285669] [] ? max_sync_store+0xc0/0xe0=20 [md_mod] [181201.285700] [] ? try_to_wake_up+0x290/0x290 [181201.285727] [] make_request+0x192/0x430 [raid456= ] [181201.285758] [] ? abort_exclusive_wait+0xb0/0xb0 [181201.285787] [] md_make_request+0xfa/0x240=20 [md_mod] [181201.285816] [] ? kfree+0x3b/0x170 [181201.285840] [] generic_make_request+0xc7/0x100 [181201.285868] [] submit_bio+0x87/0x110 [181201.285900] [] run_scheduled_bios+0x26b/0x590=20 [btrfs] [181201.285936] [] pending_bios_fn+0x15/0x20 [btrfs] [181201.285969] [] worker_loop+0x150/0x520 [btrfs] [181201.285997] [] ? __wake_up_common+0x58/0x90 [181201.286029] [] ? btrfs_queue_worker+0x300/0x300=20 [btrfs] [181201.286060] [] kthread+0x8c/0xa0 [181201.286084] [] kernel_thread_helper+0x4/0x10 [181201.286111] [] ? kthread_worker_fn+0x190/0x190 [181201.286139] [] ? gs_change+0x13/0x13 [181201.286164] INFO: task btrfs-transacti:780 blocked for more than=20 120 seconds. [181201.286195] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"=20 disables this message. [181201.286230] btrfs-transacti D 00000001033b48f7 0 780 2=20 0x00000000 [181201.286264] ffff88006d1e9430 0000000000000046 ffff880000000000=20 ffffffff810146ef [181201.286301] ffff88006d905ca0 ffff88006d1e9fd8 ffff88006d1e9fd8=20 ffff88006d1e9fd8 [181201.286338] ffff880073e97200 ffff88006d905ca0 ffff88006d1e9380=20 ffffffff8108cb65 [181201.287224] Call Trace: [181201.288093] [] ? __switch_to+0xbf/0x2f0 [181201.288986] [] ? sched_clock_local+0x25/0x90 [181201.289867] [] ? btrfs_buffer_uptodate+0x50/0x70= =20 [btrfs] [181201.290744] [] ? comp_keys+0x2c/0x30 [btrfs] [181201.291613] [] schedule+0x3f/0x60 [181201.292470] [] get_active_stripe+0x2e9/0x600=20 [raid456] [181201.293317] [] ? try_to_wake_up+0x290/0x290 [181201.294170] [] make_request+0x192/0x430 [raid456= ] [181201.295030] [] ? abort_exclusive_wait+0xb0/0xb0 [181201.295897] [] md_make_request+0xfa/0x240=20 [md_mod] [181201.296764] [] ? __btrfs_map_block+0x10e/0x840=20 [btrfs] [181201.297620] [] generic_make_request+0xc7/0x100 [181201.298463] [] submit_bio+0x87/0x110 [181201.299303] [] btrfs_map_bio+0x13e/0x1d0 [btrfs] [181201.300137] [] btrfs_submit_bio_hook+0xa9/0x170=20 [btrfs] [181201.300966] [] ?=20 __bio_add_page.part.14+0x101/0x240 [181201.301803] [] submit_one_bio+0x6a/0xa0 [btrfs] [181201.302644] []=20 submit_extent_page.isra.28+0xdd/0x200 [btrfs] [181201.302651] [] __extent_writepage+0x52c/0x740=20 [btrfs] [181201.302658] [] ? clear_extent_bit+0x3d0/0x3d0=20 [btrfs] [181201.302666] []=20 extent_write_cache_pages.isra.22.constprop.30+0x2ca/0x3f0 [btrfs] [181201.302674] [] extent_writepages+0x45/0x60=20 [btrfs] [181201.302681] [] ?=20 uncompress_inline.isra.47+0x1d0/0x1d0 [btrfs] [181201.302687] [] ? clear_extent_bit+0x1ca/0x3d0=20 [btrfs] [181201.302694] [] btrfs_writepages+0x28/0x30 [btrfs= ] [181201.302697] [] do_writepages+0x24/0x40 [181201.302700] []=20 __filemap_fdatawrite_range+0x5b/0x60 [181201.302702] [] filemap_fdatawrite+0x1f/0x30 [181201.302704] [] filemap_write_and_wait+0x35/0x60 [181201.302711] []=20 __btrfs_write_out_cache+0x807/0xa80 [btrfs] [181201.302717] [] ?=20 btrfs_find_ref_cluster+0x68/0x190 [btrfs] [181201.302723] [] btrfs_write_out_cache+0x95/0xf0=20 [btrfs] [181201.302729] []=20 btrfs_write_dirty_block_groups+0x481/0x580 [btrfs] [181201.302736] [] commit_cowonly_roots+0x115/0x1e0=20 [btrfs] [181201.302742] []=20 btrfs_commit_transaction+0x3fc/0x880 [btrfs] [181201.302745] [] ? abort_exclusive_wait+0xb0/0xb0 [181201.302751] [] ? start_transaction+0x94/0x2b0=20 [btrfs] [181201.302758] [] transaction_kthread+0x26d/0x290=20 [btrfs] [181201.302764] [] ? btrfs_congested_fn+0xd0/0xd0=20 [btrfs] [181201.302766] [] kthread+0x8c/0xa0 [181201.302768] [] kernel_thread_helper+0x4/0x10 [181201.302770] [] ? kthread_worker_fn+0x190/0x190 [181201.302772] [] ? gs_change+0x13/0x13 [181201.302775] INFO: task rsync:30933 blocked for more than 120=20 seconds. [181201.302776] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"=20 disables this message. [181201.302777] rsync D 00000001033b48f2 0 30933 30932=20 0x00000000 [181201.302779] ffff880072ce5b98 0000000000000082 0000000000000000=20 0000000000000001 [181201.302781] ffff88006d9023a0 ffff880072ce5fd8 ffff880072ce5fd8=20 ffff880072ce5fd8 [181201.302783] ffffffff8180d020 ffff88006d9023a0 ffffffff81177b50=20 00000000000000db [181201.302785] Call Trace: [181201.302788] [] ? poll_freewait+0xe0/0xe0 [181201.302790] [] ? __pollwait+0xf0/0xf0 [181201.302792] [] ? select_task_rq_fair+0x540/0xa60 [181201.302794] [] schedule+0x3f/0x60 [181201.302800] []=20 wait_current_trans.isra.22+0xa5/0xf0 [btrfs] [181201.302803] [] ? abort_exclusive_wait+0xb0/0xb0 [181201.302809] [] start_transaction+0x1f0/0x2b0=20 [btrfs] [181201.302816] [] btrfs_join_transaction+0x15/0x20=20 [btrfs] [181201.302823] [] btrfs_dirty_inode+0x50/0xd0=20 [btrfs] [181201.302830] [] btrfs_update_time+0xd6/0x170=20 [btrfs] [181201.302837] [] btrfs_file_aio_write+0x1c8/0x520=20 [btrfs] [181201.302840] [] ? pipe_read+0x2d2/0x4e0 [181201.302842] [] do_sync_write+0xd2/0x110 [181201.302844] [] ? finish_task_switch+0x49/0xd0 [181201.302848] [] ?=20 security_file_permission+0x2c/0xb0 [181201.302849] [] ? rw_verify_area+0x61/0xf0 [181201.302851] [] vfs_write+0xaf/0x180 [181201.302853] [] sys_write+0x4a/0x90 [181201.302856] [] system_call_fastpath+0x16/0x1b [181201.302858] INFO: task flush-btrfs-1:30940 blocked for more than=20 120 seconds. [181201.302859] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"=20 disables this message. [181201.302860] flush-btrfs-1 D 00000001033b5a85 0 30940 2=20 0x00000000 [181201.302862] ffff8800236218d0 0000000000000046 ffff880000000000=20 ffffffffa075460e [181201.302864] ffff88007222b1e0 ffff880023621fd8 ffff880023621fd8=20 ffff880023621fd8 [181201.302866] ffff880073e97200 ffff88007222b1e0 ffff88000dad1550=20 ffff880023621870 [181201.302868] Call Trace: [181201.302874] [] ? btrfs_queue_worker+0x1ee/0x300=20 [btrfs] [181201.302881] [] ? run_delalloc_range+0x185/0x360=20 [btrfs] [181201.302883] [] ? read_tsc+0x9/0x20 [181201.302885] [] ? __lock_page+0x70/0x70 [181201.302887] [] schedule+0x3f/0x60 [181201.302889] [] io_schedule+0x8f/0xd0 [181201.302891] [] sleep_on_page+0xe/0x20 [181201.302892] [] __wait_on_bit_lock+0x5a/0xc0 [181201.302894] [] __lock_page+0x67/0x70 [181201.302897] [] ?=20 autoremove_wake_function+0x40/0x40 [181201.302903] []=20 extent_write_cache_pages.isra.22.constprop.30+0x215/0x3f0 [btrfs] [181201.302911] [] extent_writepages+0x45/0x60=20 [btrfs] [181201.302917] [] ?=20 uncompress_inline.isra.47+0x1d0/0x1d0 [btrfs] [181201.302924] [] btrfs_writepages+0x28/0x30 [btrfs= ] [181201.302926] [] do_writepages+0x24/0x40 [181201.302928] [] writeback_single_inode+0x10f/0x3f= 0 [181201.302930] [] writeback_sb_inodes+0x1aa/0x270 [181201.302932] [] __writeback_inodes_wb+0x9e/0xd0 [181201.302934] [] wb_writeback+0x37b/0x3b0 [181201.302937] [] ? get_nr_inodes+0x52/0x70 [181201.302939] [] ? get_nr_dirty_inodes+0x52/0x80 [181201.302941] [] wb_check_old_data_flush+0x9f/0xb0 [181201.302943] [] wb_do_writeback+0x19c/0x230 [181201.302944] [] ? schedule_timeout+0x173/0x390 [181201.302947] [] ?=20 init_timer_deferrable_key+0x30/0x30 [181201.302949] [] bdi_writeback_thread+0x8c/0x340 [181201.302951] [] ? wb_do_writeback+0x230/0x230 [181201.302953] [] kthread+0x8c/0xa0 [181201.302955] [] kernel_thread_helper+0x4/0x10 [181201.302957] [] ? kthread_worker_fn+0x190/0x190 [181201.302959] [] ? gs_change+0x13/0x13 [181201.302960] INFO: task btrfs-delalloc-:30957 blocked for more than=20 120 seconds. [181201.302962] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"=20 disables this message. [181201.302963] btrfs-delalloc- D 00000001033b5a86 0 30957 2=20 0x00000000 [181201.302965] ffff88005147fc50 0000000000000046 0080004000000000=20 0800040002000100 [181201.302967] ffff880072ab8e40 ffff88005147ffd8 ffff88005147ffd8=20 ffff88005147ffd8 [181201.302969] ffff880073f09c80 ffff880072ab8e40 0000000000000001=20 0000000000000000 [181201.302970] Call Trace: [181201.302973] [] ? zlib_tr_flush_block+0x5f4/0x6f0= =20 [zlib_deflate] [181201.302975] [] ? flush_pending+0x4c/0x90=20 [zlib_deflate] [181201.302978] [] ? flush_pending+0x4c/0x90=20 [zlib_deflate] [181201.302980] [] ? zlib_deflate+0x1b6/0x410=20 [zlib_deflate] [181201.302982] [] schedule+0x3f/0x60 [181201.302988] []=20 wait_current_trans.isra.22+0xa5/0xf0 [btrfs] [181201.302990] [] ? abort_exclusive_wait+0xb0/0xb0 [181201.302997] [] start_transaction+0x1f0/0x2b0=20 [btrfs] [181201.303003] [] btrfs_join_transaction+0x15/0x20=20 [btrfs] [181201.303010] [] compress_file_range+0x2c5/0x660=20 [btrfs] [181201.303017] [] async_cow_start+0x35/0x50 [btrfs] [181201.303023] [] worker_loop+0x150/0x520 [btrfs] [181201.303029] [] ? btrfs_queue_worker+0x300/0x300=20 [btrfs] [181201.303032] [] kthread+0x8c/0xa0 [181201.303033] [] kernel_thread_helper+0x4/0x10 [181201.303036] [] ? kthread_worker_fn+0x190/0x190 [181201.303037] [] ? gs_change+0x13/0x13 [181321.301930] INFO: task btrfs-submit-1:768 blocked for more than 120= =20 seconds. [181321.302761] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"=20 disables this message. [181321.303594] btrfs-submit-1 D 0000000021102920 0 768 2=20 0x00000000 [181321.304428] ffff88006d1b7aa0 0000000000000046 0000000100000000=20 0000000300000001 [181321.305272] ffff880072c64020 ffff88006d1b7fd8 ffff88006d1b7fd8=20 ffff88006d1b7fd8 [181321.306110] ffff88006d900000 ffff880072c64020 ffff88006d1b7a00=20 ffffffff8104e053 [181321.306940] Call Trace: [181321.307759] [] ? __wake_up+0x53/0x70 [181321.308595] [] ? kfree+0x3b/0x170 [181321.309428] [] ? plugger_unplug+0x3b/0x50=20 [md_mod] [181321.310266] [] ? blk_flush_plug_list+0xa7/0x250 [181321.311107] [] schedule+0x3f/0x60 [181321.311951] [] get_active_stripe+0x2e9/0x600=20 [raid456] [181321.312805] [] ? max_sync_store+0xc0/0xe0=20 [md_mod] [181321.313657] [] ? try_to_wake_up+0x290/0x290 [181321.314510] [] make_request+0x192/0x430 [raid456= ] [181321.315376] [] ? abort_exclusive_wait+0xb0/0xb0 [181321.316234] [] md_make_request+0xfa/0x240=20 [md_mod] [181321.317094] [] ? kfree+0x3b/0x170 [181321.317952] [] generic_make_request+0xc7/0x100 [181321.318821] [] submit_bio+0x87/0x110 [181321.319690] [] run_scheduled_bios+0x26b/0x590=20 [btrfs] [181321.320564] [] pending_bios_fn+0x15/0x20 [btrfs] [181321.321441] [] worker_loop+0x150/0x520 [btrfs] [181321.322311] [] ? __wake_up_common+0x58/0x90 [181321.323167] [] ? btrfs_queue_worker+0x300/0x300=20 [btrfs] [181321.324015] [] kthread+0x8c/0xa0 [181321.324856] [] kernel_thread_helper+0x4/0x10 [181321.325700] [] ? kthread_worker_fn+0x190/0x190 [181321.326537] [] ? gs_change+0x13/0x13 [181321.327360] INFO: task btrfs-transacti:780 blocked for more than=20 120 seconds. [181321.328189] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"=20 disables this message. [181321.329035] btrfs-transacti D 00000001033b48f7 0 780 2=20 0x00000000 [181321.329900] ffff88006d1e9430 0000000000000046 ffff880000000000=20 ffffffff810146ef [181321.330774] ffff88006d905ca0 ffff88006d1e9fd8 ffff88006d1e9fd8=20 ffff88006d1e9fd8 [181321.331646] ffff880073e97200 ffff88006d905ca0 ffff88006d1e9380=20 ffffffff8108cb65 [181321.332527] Call Trace: [181321.333375] [] ? __switch_to+0xbf/0x2f0 [181321.334238] [] ? sched_clock_local+0x25/0x90 [181321.335104] [] ? btrfs_buffer_uptodate+0x50/0x70= =20 [btrfs] [181321.335980] [] ? comp_keys+0x2c/0x30 [btrfs] [181321.336843] [] schedule+0x3f/0x60 [181321.337704] [] get_active_stripe+0x2e9/0x600=20 [raid456] [181321.338581] [] ? try_to_wake_up+0x290/0x290 [181321.339447] [] make_request+0x192/0x430 [raid456= ] [181321.340320] [] ? abort_exclusive_wait+0xb0/0xb0 [181321.341194] [] md_make_request+0xfa/0x240=20 [md_mod] [181321.342084] [] ? __btrfs_map_block+0x10e/0x840=20 [btrfs] [181321.342958] [] generic_make_request+0xc7/0x100 [181321.343818] [] submit_bio+0x87/0x110 [181321.344668] [] btrfs_map_bio+0x13e/0x1d0 [btrfs] [181321.345524] [] btrfs_submit_bio_hook+0xa9/0x170=20 [btrfs] [181321.346365] [] ?=20 __bio_add_page.part.14+0x101/0x240 [181321.347216] [] submit_one_bio+0x6a/0xa0 [btrfs] [181321.348059] []=20 submit_extent_page.isra.28+0xdd/0x200 [btrfs] [181321.348912] [] __extent_writepage+0x52c/0x740=20 [btrfs] [181321.349763] [] ? clear_extent_bit+0x3d0/0x3d0=20 [btrfs] [181321.350613] []=20 extent_write_cache_pages.isra.22.constprop.30+0x2ca/0x3f0 [btrfs] [181321.351480] [] extent_writepages+0x45/0x60=20 [btrfs] [181321.352351] [] ?=20 uncompress_inline.isra.47+0x1d0/0x1d0 [btrfs] [181321.353220] [] ? clear_extent_bit+0x1ca/0x3d0=20 [btrfs] [181321.354089] [] btrfs_writepages+0x28/0x30 [btrfs= ] [181321.354955] [] do_writepages+0x24/0x40 [181321.355823] []=20 __filemap_fdatawrite_range+0x5b/0x60 [181321.356688] [] filemap_fdatawrite+0x1f/0x30 [181321.357546] [] filemap_write_and_wait+0x35/0x60 [181321.358408] []=20 __btrfs_write_out_cache+0x807/0xa80 [btrfs] [181321.359281] [] ?=20 btrfs_find_ref_cluster+0x68/0x190 [btrfs] [181321.360147] [] btrfs_write_out_cache+0x95/0xf0=20 [btrfs] [181321.361012] []=20 btrfs_write_dirty_block_groups+0x481/0x580 [btrfs] [181321.361888] [] commit_cowonly_roots+0x115/0x1e0=20 [btrfs] [181321.362759] []=20 btrfs_commit_transaction+0x3fc/0x880 [btrfs] [181321.363632] [] ? abort_exclusive_wait+0xb0/0xb0 [181321.364508] [] ? start_transaction+0x94/0x2b0=20 [btrfs] [181321.365388] [] transaction_kthread+0x26d/0x290=20 [btrfs] [181321.366265] [] ? btrfs_congested_fn+0xd0/0xd0=20 [btrfs] [181321.367138] [] kthread+0x8c/0xa0 [181321.368005] [] kernel_thread_helper+0x4/0x10 [181321.368875] [] ? kthread_worker_fn+0x190/0x190 [181321.369726] [] ? gs_change+0x13/0x13 [181321.370560] INFO: task rsync:30933 blocked for more than 120=20 seconds. [181321.371399] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"=20 disables this message. [181321.372258] rsync D 00000001033b48f2 0 30933 30932=20 0x00000000 [181321.373125] ffff880072ce5b98 0000000000000082 0000000000000000=20 0000000000000001 [181321.373990] ffff88006d9023a0 ffff880072ce5fd8 ffff880072ce5fd8=20 ffff880072ce5fd8 [181321.374857] ffffffff8180d020 ffff88006d9023a0 ffffffff81177b50=20 00000000000000db [181321.375735] Call Trace: [181321.376591] [] ? poll_freewait+0xe0/0xe0 [181321.377461] [] ? __pollwait+0xf0/0xf0 [181321.378325] [] ? select_task_rq_fair+0x540/0xa60 [181321.379197] [] schedule+0x3f/0x60 [181321.380058] []=20 wait_current_trans.isra.22+0xa5/0xf0 [btrfs] [181321.380929] [] ? abort_exclusive_wait+0xb0/0xb0 [181321.381802] [] start_transaction+0x1f0/0x2b0=20 [btrfs] [181321.382684] [] btrfs_join_transaction+0x15/0x20=20 [btrfs] [181321.383561] [] btrfs_dirty_inode+0x50/0xd0=20 [btrfs] [181321.384434] [] btrfs_update_time+0xd6/0x170=20 [btrfs] [181321.385311] [] btrfs_file_aio_write+0x1c8/0x520=20 [btrfs] [181321.386179] [] ? pipe_read+0x2d2/0x4e0 [181321.387043] [] do_sync_write+0xd2/0x110 [181321.387899] [] ? finish_task_switch+0x49/0xd0 [181321.388763] [] ?=20 security_file_permission+0x2c/0xb0 [181321.389623] [] ? rw_verify_area+0x61/0xf0 [181321.390475] [] vfs_write+0xaf/0x180 [181321.391324] [] sys_write+0x4a/0x90 [181321.392163] [] system_call_fastpath+0x16/0x1b [181321.392993] INFO: task flush-btrfs-1:30940 blocked for more than=20 120 seconds. [181321.393826] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"=20 disables this message. [181321.394670] flush-btrfs-1 D 00000001033b5a85 0 30940 2=20 0x00000000 [181321.395531] ffff8800236218d0 0000000000000046 ffff880000000000=20 ffffffffa075460e [181321.396394] ffff88007222b1e0 ffff880023621fd8 ffff880023621fd8=20 ffff880023621fd8 [181321.397258] ffff880073e97200 ffff88007222b1e0 ffff88000dad1550=20 ffff880023621870 [181321.398118] Call Trace: [181321.398977] [] ? btrfs_queue_worker+0x1ee/0x300=20 [btrfs] [181321.399856] [] ? run_delalloc_range+0x185/0x360=20 [btrfs] [181321.400728] [] ? read_tsc+0x9/0x20 [181321.401593] [] ? __lock_page+0x70/0x70 [181321.402460] [] schedule+0x3f/0x60 [181321.403310] [] io_schedule+0x8f/0xd0 [181321.404153] [] sleep_on_page+0xe/0x20 [181321.404988] [] __wait_on_bit_lock+0x5a/0xc0 [181321.405829] [] __lock_page+0x67/0x70 [181321.406660] [] ?=20 autoremove_wake_function+0x40/0x40 [181321.407500] []=20 extent_write_cache_pages.isra.22.constprop.30+0x215/0x3f0 [btrfs] [181321.408359] [] extent_writepages+0x45/0x60=20 [btrfs] [181321.409220] [] ?=20 uncompress_inline.isra.47+0x1d0/0x1d0 [btrfs] [181321.410085] [] btrfs_writepages+0x28/0x30 [btrfs= ] [181321.410946] [] do_writepages+0x24/0x40 [181321.411799] [] writeback_single_inode+0x10f/0x3f= 0 [181321.412651] [] writeback_sb_inodes+0x1aa/0x270 [181321.413480] [] __writeback_inodes_wb+0x9e/0xd0 [181321.414304] [] wb_writeback+0x37b/0x3b0 [181321.415118] [] ? get_nr_inodes+0x52/0x70 [181321.415934] [] ? get_nr_dirty_inodes+0x52/0x80 [181321.416731] [] wb_check_old_data_flush+0x9f/0xb0 [181321.417525] [] wb_do_writeback+0x19c/0x230 [181321.418322] [] ? schedule_timeout+0x173/0x390 [181321.419127] [] ?=20 init_timer_deferrable_key+0x30/0x30 [181321.419928] [] bdi_writeback_thread+0x8c/0x340 [181321.420724] [] ? wb_do_writeback+0x230/0x230 [181321.421513] [] kthread+0x8c/0xa0 [181321.422300] [] kernel_thread_helper+0x4/0x10 [181321.423086] [] ? kthread_worker_fn+0x190/0x190 [181321.423868] [] ? gs_change+0x13/0x13 [181321.424650] INFO: task btrfs-delalloc-:30957 blocked for more than=20 120 seconds. [181321.425455] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"=20 disables this message. [181321.426264] btrfs-delalloc- D 00000001033b5a86 0 30957 2=20 0x00000000 [181321.427088] ffff88005147fc50 0000000000000046 0080004000000000=20 0800040002000100 [181321.427922] ffff880072ab8e40 ffff88005147ffd8 ffff88005147ffd8=20 ffff88005147ffd8 [181321.428764] ffff880073f09c80 ffff880072ab8e40 0000000000000001=20 0000000000000000 [181321.429604] Call Trace: [181321.430433] [] ? zlib_tr_flush_block+0x5f4/0x6f0= =20 [zlib_deflate] [181321.431299] [] ? flush_pending+0x4c/0x90=20 [zlib_deflate] [181321.432176] [] ? flush_pending+0x4c/0x90=20 [zlib_deflate] [181321.433026] [] ? zlib_deflate+0x1b6/0x410=20 [zlib_deflate] [181321.433865] [] schedule+0x3f/0x60 [181321.434692] []=20 wait_current_trans.isra.22+0xa5/0xf0 [btrfs] [181321.435529] [] ? abort_exclusive_wait+0xb0/0xb0 [181321.436362] [] start_transaction+0x1f0/0x2b0=20 [btrfs] [181321.437204] [] btrfs_join_transaction+0x15/0x20=20 [btrfs] [181321.438039] [] compress_file_range+0x2c5/0x660=20 [btrfs] [181321.438876] [] async_cow_start+0x35/0x50 [btrfs] [181321.439707] [] worker_loop+0x150/0x520 [btrfs] [181321.440535] [] ? btrfs_queue_worker+0x300/0x300=20 [btrfs] [181321.441366] [] kthread+0x8c/0xa0 [181321.442202] [] kernel_thread_helper+0x4/0x10 [181321.443039] [] ? kthread_worker_fn+0x190/0x190 [181321.443880] [] ? gs_change+0x13/0x13 On =CE=94=CE=B5=CF=85=CF=84=CE=AD=CF=81=CE=B1, 5 =CE=94=CE=B5=CE=BA=CE=AD= =CE=BC=CE=B2=CF=81=CE=B9=CE=BF=CF=82 2011 3:12:52 =CE=BC=CE=BC, Chris M= ason wrote: > On Sat, Dec 03, 2011 at 04:36:44PM +0200, Konstantinos Skarlatos wrot= e: >> 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=3Dzlib,compress-force btrfs_test /storage/btr= fs >> the filesystem is a file on a raid5 xfs volume. > > Oh, the loop + raid5 + xfs is going to cause problems. The loop driv= er > is fine for testing but I wouldn't be using it in a production > environment. > > -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html