john terragon
2014-Sep-01 13:33 UTC
kernel 3.17-rc3: task rsync:2524 blocked for more than 120 seconds
Hi. I'm not sure if this is related to the hung task problem that I've been seeing in this ml for a while. But I've been having this seemingly related problem with 3.15, 3.16 and now 3.17-rc3 (which, if I'm not mistaken, should have a fix for the hung task problem). So here it is: I have a usb flash drive with btrfs (on top of dmcrypt) usually mounted with these options rw,noatime,compress-force=zlib,ssd,space_cache,autodefrag When I try to rsync the usb flash drive I get a truck-load of "INFO: task rsync:2524 blocked for more than 120 seconds" as you can see below. The rsync process crawls into an almost complete stop and I can't even kill it. I know the usb key is OK because I've tried the same thing with ext4 and xfs and everything went fine. Any ideas? Thanks John [ 2763.077502] INFO: task rsync:2524 blocked for more than 120 seconds. [ 2763.077513] Not tainted 3.17.0-rc3-cu3 #1 [ 2763.077516] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2763.077521] rsync D ffff880347b63840 0 2524 2523 0x00000000 [ 2763.077531] ffff880347b633f0 0000000000000082 0000000000013200 ffff880347b2bfd8 [ 2763.077540] 0000000000013200 ffff880347b633f0 ffff8803f73af660 ffff880347b2baa0 [ 2763.077546] ffff8803f73af664 ffff880347b633f0 00000000ffffffff ffff8803f73af668 [ 2763.077554] Call Trace: [ 2763.077573] [<ffffffff8149d290>] ? schedule_preempt_disabled+0x20/0x60 [ 2763.077582] [<ffffffff8149ed1b>] ? __mutex_lock_slowpath+0x14b/0x1d0 [ 2763.077593] [<ffffffff810a7f6a>] ? del_timer_sync+0x4a/0x60 [ 2763.077601] [<ffffffff8149edb6>] ? mutex_lock+0x16/0x25 [ 2763.077656] [<ffffffffa03c789e>] ? btrfs_wait_ordered_roots+0x3e/0x1f0 [btrfs] [ 2763.077682] [<ffffffffa039819a>] ? flush_space+0x1ea/0x4b0 [btrfs] [ 2763.077706] [<ffffffffa0391a65>] ? get_alloc_profile+0x85/0x1c0 [btrfs] [ 2763.077730] [<ffffffffa0397f51>] ? can_overcommit+0x81/0xe0 [btrfs] [ 2763.077755] [<ffffffffa0398800>] ? reserve_metadata_bytes+0x1c0/0x3d0 [btrfs] [ 2763.077780] [<ffffffffa0398e58>] ? btrfs_block_rsv_add+0x28/0x50 [btrfs] [ 2763.077811] [<ffffffffa03afd72>] ? start_transaction+0x442/0x500 [btrfs] [ 2763.077839] [<ffffffffa03a2694>] ? btrfs_check_dir_item_collision+0x74/0x100 [btrfs] [ 2763.077871] [<ffffffffa03bbe1f>] ? btrfs_rename2+0x15f/0x6d0 [btrfs] [ 2763.077880] [<ffffffff8105fbeb>] ? capable_wrt_inode_uidgid+0x4b/0x60 [ 2763.077887] [<ffffffff8105fb00>] ? cap_validate_magic+0x100/0x100 [ 2763.077897] [<ffffffff811685a1>] ? vfs_rename+0x5a1/0x790 [ 2763.077905] [<ffffffff81164700>] ? follow_managed+0x2a0/0x2b0 [ 2763.077913] [<ffffffff81168c13>] ? SYSC_renameat2+0x483/0x530 [ 2763.077922] [<ffffffff81175bad>] ? notify_change+0x2cd/0x380 [ 2763.077927] [<ffffffff8115d918>] ? __sb_end_write+0x28/0x60 [ 2763.077937] [<ffffffff8125a528>] ? lockref_put_or_lock+0x48/0x80 [ 2763.077943] [<ffffffff811709ed>] ? dput+0xad/0x170 [ 2763.077951] [<ffffffff81163ffd>] ? path_put+0xd/0x20 [ 2763.077958] [<ffffffff8115a321>] ? SyS_chmod+0x41/0x90 [ 2763.077966] [<ffffffff814a0a29>] ? system_call_fastpath+0x16/0x1b [ 2883.203005] INFO: task kworker/u16:11:1617 blocked for more than 120 seconds. [ 2883.203017] Not tainted 3.17.0-rc3-cu3 #1 [ 2883.203020] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2883.203024] kworker/u16:11 D ffff8804185d1740 0 1617 2 0x00000000 [ 2883.203085] Workqueue: btrfs-endio-write btrfs_endio_write_helper [btrfs] [ 2883.203091] ffff8804185d12f0 0000000000000046 0000000000013200 ffff880435f3bfd8 [ 2883.203099] 0000000000013200 ffff8804185d12f0 ffff8803b86bef00 ffff8803e9a761f0 [ 2883.203106] ffff8803e9a761f0 0000000000000001 0000000000000000 ffff8803aece6520 [ 2883.203113] Call Trace: [ 2883.203149] [<ffffffffa03ae717>] ? wait_current_trans.isra.22+0x97/0xf0 [btrfs] [ 2883.203161] [<ffffffff8108c460>] ? prepare_to_wait_event+0xf0/0xf0 [ 2883.203190] [<ffffffffa03afbd8>] ? start_transaction+0x2a8/0x500 [btrfs] [ 2883.203221] [<ffffffffa03b7970>] ? btrfs_finish_ordered_io+0x250/0x5c0 [btrfs] [ 2883.203230] [<ffffffff8100b579>] ? __switch_to+0x119/0x580 [ 2883.203261] [<ffffffffa03dbb8f>] ? normal_work_helper+0xaf/0x190 [btrfs] [ 2883.203272] [<ffffffff8106cd47>] ? process_one_work+0x167/0x380 [ 2883.203280] [<ffffffff8106d9b4>] ? worker_thread+0x114/0x480 [ 2883.203288] [<ffffffff8106d8a0>] ? rescuer_thread+0x2b0/0x2b0 [ 2883.203294] [<ffffffff81072248>] ? kthread+0xb8/0xd0 [ 2883.203301] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.203309] [<ffffffff814a097c>] ? ret_from_fork+0x7c/0xb0 [ 2883.203315] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.203332] INFO: task btrfs-transacti:2126 blocked for more than 120 seconds. [ 2883.203336] Not tainted 3.17.0-rc3-cu3 #1 [ 2883.203338] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2883.203341] btrfs-transacti D ffff8803e98a2860 0 2126 2 0x00000000 [ 2883.203348] ffff8803e98a2410 0000000000000046 0000000000013200 ffff8803e9af3fd8 [ 2883.203355] 0000000000013200 ffff8803e98a2410 ffff88045fa13af0 ffff8803e9af3b48 [ 2883.203361] ffff88045fdb2928 0000000000000002 ffffffff8149d750 ffff8803e9af3c08 [ 2883.203368] Call Trace: [ 2883.203378] [<ffffffff8149d750>] ? bit_wait+0x40/0x40 [ 2883.203386] [<ffffffff8149d144>] ? io_schedule+0x94/0x120 [ 2883.203394] [<ffffffff8149d773>] ? bit_wait_io+0x23/0x40 [ 2883.203402] [<ffffffff8149d495>] ? __wait_on_bit+0x55/0x80 [ 2883.203410] [<ffffffff810f7c0e>] ? wait_on_page_bit+0x6e/0x80 [ 2883.203418] [<ffffffff8108c490>] ? autoremove_wake_function+0x30/0x30 [ 2883.203425] [<ffffffff810f7cf0>] ? filemap_fdatawait_range+0xd0/0x160 [ 2883.203459] [<ffffffffa03c81d2>] ? btrfs_wait_ordered_range+0x62/0x120 [btrfs] [ 2883.203490] [<ffffffffa03ef4f7>] ? __btrfs_write_out_cache+0x327/0x3e0 [btrfs] [ 2883.203520] [<ffffffffa03ba36c>] ? btrfs_iget+0x20c/0x6b0 [btrfs] [ 2883.203551] [<ffffffffa03ef899>] ? btrfs_write_out_cache+0xa9/0xe0 [btrfs] [ 2883.203578] [<ffffffffa039f80a>] ? btrfs_write_dirty_block_groups+0x59a/0x680 [btrfs] [ 2883.203606] [<ffffffffa03ad495>] ? commit_cowonly_roots+0x185/0x240 [btrfs] [ 2883.203634] [<ffffffffa03af3a4>] ? btrfs_commit_transaction+0x424/0x9b0 [btrfs] [ 2883.203660] [<ffffffffa03af9bb>] ? start_transaction+0x8b/0x500 [btrfs] [ 2883.203686] [<ffffffffa03ab07d>] ? transaction_kthread+0x1ad/0x240 [btrfs] [ 2883.203712] [<ffffffffa03aaed0>] ? btrfs_cleanup_transaction+0x4d0/0x4d0 [btrfs] [ 2883.203719] [<ffffffff81072248>] ? kthread+0xb8/0xd0 [ 2883.203725] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.203732] [<ffffffff814a097c>] ? ret_from_fork+0x7c/0xb0 [ 2883.203738] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.203745] INFO: task kworker/u16:0:2287 blocked for more than 120 seconds. [ 2883.203748] Not tainted 3.17.0-rc3-cu3 #1 [ 2883.203751] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2883.203754] kworker/u16:0 D ffff88044b336d50 0 2287 2 0x00000000 [ 2883.203784] Workqueue: btrfs-endio-write btrfs_endio_write_helper [btrfs] [ 2883.203788] ffff88044b336900 0000000000000046 0000000000013200 ffff880362893fd8 [ 2883.203795] 0000000000013200 ffff88044b336900 ffff8803b86bef00 ffff8803e9a761f0 [ 2883.203802] ffff8803e9a761f0 0000000000000001 0000000000000000 ffff8803b45650c0 [ 2883.203808] Call Trace: [ 2883.203835] [<ffffffffa03ae717>] ? wait_current_trans.isra.22+0x97/0xf0 [btrfs] [ 2883.203843] [<ffffffff8108c460>] ? prepare_to_wait_event+0xf0/0xf0 [ 2883.203869] [<ffffffffa03afbd8>] ? start_transaction+0x2a8/0x500 [btrfs] [ 2883.203898] [<ffffffffa03b7970>] ? btrfs_finish_ordered_io+0x250/0x5c0 [btrfs] [ 2883.203905] [<ffffffff8100b579>] ? __switch_to+0x119/0x580 [ 2883.203934] [<ffffffffa03dbb8f>] ? normal_work_helper+0xaf/0x190 [btrfs] [ 2883.203943] [<ffffffff8106cd47>] ? process_one_work+0x167/0x380 [ 2883.203951] [<ffffffff8106d9b4>] ? worker_thread+0x114/0x480 [ 2883.203958] [<ffffffff8106d8a0>] ? rescuer_thread+0x2b0/0x2b0 [ 2883.203964] [<ffffffff81072248>] ? kthread+0xb8/0xd0 [ 2883.203970] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.203977] [<ffffffff814a097c>] ? ret_from_fork+0x7c/0xb0 [ 2883.203983] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.203988] INFO: task kworker/u16:1:2395 blocked for more than 120 seconds. [ 2883.203991] Not tainted 3.17.0-rc3-cu3 #1 [ 2883.203994] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2883.203997] kworker/u16:1 D ffff880362469780 0 2395 2 0x00000000 [ 2883.204022] Workqueue: btrfs-flush_delalloc btrfs_flush_delalloc_helper [btrfs] [ 2883.204025] ffff880362469330 0000000000000046 0000000000013200 ffff88036328ffd8 [ 2883.204032] 0000000000013200 ffff880362469330 ffff8803bea0d9a0 ffff8803bea0da18 [ 2883.204038] ffff8803e990d840 ffff88044dc33100 0000000000000000 0000000000000000 [ 2883.204045] Call Trace: [ 2883.204074] [<ffffffffa03c7a9d>] ? btrfs_start_ordered_extent+0x4d/0x90 [btrfs] [ 2883.204081] [<ffffffff8108c460>] ? prepare_to_wait_event+0xf0/0xf0 [ 2883.204108] [<ffffffffa03c7afc>] ? btrfs_run_ordered_extent_work+0x1c/0x30 [btrfs] [ 2883.204133] [<ffffffffa03dbb8f>] ? normal_work_helper+0xaf/0x190 [btrfs] [ 2883.204141] [<ffffffff8106cd47>] ? process_one_work+0x167/0x380 [ 2883.204148] [<ffffffff8106a993>] ? pwq_activate_delayed_work+0x23/0x30 [ 2883.204156] [<ffffffff8106d9b4>] ? worker_thread+0x114/0x480 [ 2883.204163] [<ffffffff8106d8a0>] ? rescuer_thread+0x2b0/0x2b0 [ 2883.204169] [<ffffffff81072248>] ? kthread+0xb8/0xd0 [ 2883.204175] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.204181] [<ffffffff814a097c>] ? ret_from_fork+0x7c/0xb0 [ 2883.204187] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.204192] INFO: task kworker/u16:3:2461 blocked for more than 120 seconds. [ 2883.204195] Not tainted 3.17.0-rc3-cu3 #1 [ 2883.204198] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2883.204200] kworker/u16:3 D ffff88042b771740 0 2461 2 0x00000000 [ 2883.204225] Workqueue: btrfs-flush_delalloc btrfs_flush_delalloc_helper [btrfs] [ 2883.204228] ffff88042b7712f0 0000000000000046 0000000000013200 ffff880349157fd8 [ 2883.204234] 0000000000013200 ffff88042b7712f0 ffff8803a5362808 ffff8803a5362880 [ 2883.204241] ffff8803e990d840 ffff88044dc33100 0000000000000000 0000000000000000 [ 2883.204248] Call Trace: [ 2883.204274] [<ffffffffa03c7a9d>] ? btrfs_start_ordered_extent+0x4d/0x90 [btrfs] [ 2883.204281] [<ffffffff8108c460>] ? prepare_to_wait_event+0xf0/0xf0 [ 2883.204306] [<ffffffffa03c7afc>] ? btrfs_run_ordered_extent_work+0x1c/0x30 [btrfs] [ 2883.204330] [<ffffffffa03dbb8f>] ? normal_work_helper+0xaf/0x190 [btrfs] [ 2883.204337] [<ffffffff8106cd47>] ? process_one_work+0x167/0x380 [ 2883.204344] [<ffffffff8106a993>] ? pwq_activate_delayed_work+0x23/0x30 [ 2883.204352] [<ffffffff8106d9b4>] ? worker_thread+0x114/0x480 [ 2883.204359] [<ffffffff8106d8a0>] ? rescuer_thread+0x2b0/0x2b0 [ 2883.204365] [<ffffffff81072248>] ? kthread+0xb8/0xd0 [ 2883.204371] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.204377] [<ffffffff814a097c>] ? ret_from_fork+0x7c/0xb0 [ 2883.204383] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.204388] INFO: task kworker/u16:4:2462 blocked for more than 120 seconds. [ 2883.204391] Not tainted 3.17.0-rc3-cu3 #1 [ 2883.204394] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2883.204396] kworker/u16:4 D ffff880348f257c0 0 2462 2 0x00000000 [ 2883.204421] Workqueue: btrfs-endio-write btrfs_endio_write_helper [btrfs] [ 2883.204424] ffff880348f25370 0000000000000046 0000000000013200 ffff880348f2bfd8 [ 2883.204431] 0000000000013200 ffff880348f25370 ffff8803b86bef00 ffff8803e9a761f0 [ 2883.204437] ffff8803e9a761f0 0000000000000001 0000000000000000 ffff8803b4565200 [ 2883.204444] Call Trace: [ 2883.204468] [<ffffffffa03ae717>] ? wait_current_trans.isra.22+0x97/0xf0 [btrfs] [ 2883.204475] [<ffffffff8108c460>] ? prepare_to_wait_event+0xf0/0xf0 [ 2883.204499] [<ffffffffa03afbd8>] ? start_transaction+0x2a8/0x500 [btrfs] [ 2883.204525] [<ffffffffa03b7970>] ? btrfs_finish_ordered_io+0x250/0x5c0 [btrfs] [ 2883.204531] [<ffffffff8100b579>] ? __switch_to+0x119/0x580 [ 2883.204556] [<ffffffffa03dbb8f>] ? normal_work_helper+0xaf/0x190 [btrfs] [ 2883.204564] [<ffffffff8106cd47>] ? process_one_work+0x167/0x380 [ 2883.204571] [<ffffffff8106d9b4>] ? worker_thread+0x114/0x480 [ 2883.204579] [<ffffffff8106d8a0>] ? rescuer_thread+0x2b0/0x2b0 [ 2883.204584] [<ffffffff81072248>] ? kthread+0xb8/0xd0 [ 2883.204591] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.204597] [<ffffffff814a097c>] ? ret_from_fork+0x7c/0xb0 [ 2883.204603] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.204607] INFO: task kworker/u16:5:2473 blocked for more than 120 seconds. [ 2883.204610] Not tainted 3.17.0-rc3-cu3 #1 [ 2883.204613] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2883.204616] kworker/u16:5 D ffff880426eb39c0 0 2473 2 0x00000000 [ 2883.204639] Workqueue: btrfs-flush_delalloc btrfs_flush_delalloc_helper [btrfs] [ 2883.204642] ffff880426eb3570 0000000000000046 0000000000013200 ffff8800681b7fd8 [ 2883.204648] 0000000000013200 ffff880426eb3570 ffff8803a8f4c808 ffff8803a8f4c880 [ 2883.204655] ffff8803e990d840 ffff88044dc33100 0000000000000000 0000000000000000 [ 2883.204662] Call Trace: [ 2883.204688] [<ffffffffa03c7a9d>] ? btrfs_start_ordered_extent+0x4d/0x90 [btrfs] [ 2883.204695] [<ffffffff8108c460>] ? prepare_to_wait_event+0xf0/0xf0 [ 2883.204720] [<ffffffffa03c7afc>] ? btrfs_run_ordered_extent_work+0x1c/0x30 [btrfs] [ 2883.204743] [<ffffffffa03dbb8f>] ? normal_work_helper+0xaf/0x190 [btrfs] [ 2883.204750] [<ffffffff8106cd47>] ? process_one_work+0x167/0x380 [ 2883.204758] [<ffffffff8106a993>] ? pwq_activate_delayed_work+0x23/0x30 [ 2883.204765] [<ffffffff8106d9b4>] ? worker_thread+0x114/0x480 [ 2883.204772] [<ffffffff8106d8a0>] ? rescuer_thread+0x2b0/0x2b0 [ 2883.204778] [<ffffffff81072248>] ? kthread+0xb8/0xd0 [ 2883.204784] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.204790] [<ffffffff814a097c>] ? ret_from_fork+0x7c/0xb0 [ 2883.204796] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.204801] INFO: task kworker/u16:6:2480 blocked for more than 120 seconds. [ 2883.204805] Not tainted 3.17.0-rc3-cu3 #1 [ 2883.204807] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2883.204810] kworker/u16:6 D ffff88044d610e50 0 2480 2 0x00000000 [ 2883.204832] Workqueue: btrfs-flush_delalloc btrfs_flush_delalloc_helper [btrfs] [ 2883.204835] ffff88044d610a00 0000000000000046 0000000000013200 ffff880347a0ffd8 [ 2883.204842] 0000000000013200 ffff88044d610a00 ffff8803a80adcd0 ffff8803a80add48 [ 2883.204849] ffff8803e990d840 ffff88044dc33100 0000000000000000 0000000000000000 [ 2883.204855] Call Trace: [ 2883.204880] [<ffffffffa03c7a9d>] ? btrfs_start_ordered_extent+0x4d/0x90 [btrfs] [ 2883.204887] [<ffffffff8108c460>] ? prepare_to_wait_event+0xf0/0xf0 [ 2883.204911] [<ffffffffa03c7afc>] ? btrfs_run_ordered_extent_work+0x1c/0x30 [btrfs] [ 2883.204933] [<ffffffffa03dbb8f>] ? normal_work_helper+0xaf/0x190 [btrfs] [ 2883.204941] [<ffffffff8106cd47>] ? process_one_work+0x167/0x380 [ 2883.204948] [<ffffffff8106a993>] ? pwq_activate_delayed_work+0x23/0x30 [ 2883.204955] [<ffffffff8106d9b4>] ? worker_thread+0x114/0x480 [ 2883.204962] [<ffffffff8106d8a0>] ? rescuer_thread+0x2b0/0x2b0 [ 2883.204968] [<ffffffff81072248>] ? kthread+0xb8/0xd0 [ 2883.204974] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.204980] [<ffffffff814a097c>] ? ret_from_fork+0x7c/0xb0 [ 2883.204986] [<ffffffff81072190>] ? kthread_create_on_node+0x170/0x170 [ 2883.204992] INFO: task rsync:2524 blocked for more than 120 seconds. [ 2883.204995] Not tainted 3.17.0-rc3-cu3 #1 [ 2883.204997] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2883.205000] rsync D ffff880347b63840 0 2524 2523 0x00000000 [ 2883.205006] ffff880347b633f0 0000000000000082 0000000000013200 ffff880347b2bfd8 [ 2883.205013] 0000000000013200 ffff880347b633f0 ffff8803f73af660 ffff880347b2baa0 [ 2883.205019] ffff8803f73af664 ffff880347b633f0 00000000ffffffff ffff8803f73af668 [ 2883.205026] Call Trace: [ 2883.205035] [<ffffffff8149d290>] ? schedule_preempt_disabled+0x20/0x60 [ 2883.205043] [<ffffffff8149ed1b>] ? __mutex_lock_slowpath+0x14b/0x1d0 [ 2883.205053] [<ffffffff810a7f6a>] ? del_timer_sync+0x4a/0x60 [ 2883.205061] [<ffffffff8149edb6>] ? mutex_lock+0x16/0x25 [ 2883.205085] [<ffffffffa03c789e>] ? btrfs_wait_ordered_roots+0x3e/0x1f0 [btrfs] [ 2883.205109] [<ffffffffa039819a>] ? flush_space+0x1ea/0x4b0 [btrfs] [ 2883.205131] [<ffffffffa0391a65>] ? get_alloc_profile+0x85/0x1c0 [btrfs] [ 2883.205153] [<ffffffffa0397f51>] ? can_overcommit+0x81/0xe0 [btrfs] [ 2883.205176] [<ffffffffa0398800>] ? reserve_metadata_bytes+0x1c0/0x3d0 [btrfs] [ 2883.205200] [<ffffffffa0398e58>] ? btrfs_block_rsv_add+0x28/0x50 [btrfs] [ 2883.205224] [<ffffffffa03afd72>] ? start_transaction+0x442/0x500 [btrfs] [ 2883.205249] [<ffffffffa03a2694>] ? btrfs_check_dir_item_collision+0x74/0x100 [btrfs] [ 2883.205276] [<ffffffffa03bbe1f>] ? btrfs_rename2+0x15f/0x6d0 [btrfs] [ 2883.205283] [<ffffffff8105fbeb>] ? capable_wrt_inode_uidgid+0x4b/0x60 [ 2883.205290] [<ffffffff8105fb00>] ? cap_validate_magic+0x100/0x100 [ 2883.205300] [<ffffffff811685a1>] ? vfs_rename+0x5a1/0x790 [ 2883.205307] [<ffffffff81164700>] ? follow_managed+0x2a0/0x2b0 [ 2883.205315] [<ffffffff81168c13>] ? SYSC_renameat2+0x483/0x530 [ 2883.205325] [<ffffffff81175bad>] ? notify_change+0x2cd/0x380 [ 2883.205331] [<ffffffff8115d918>] ? __sb_end_write+0x28/0x60 [ 2883.205341] [<ffffffff8125a528>] ? lockref_put_or_lock+0x48/0x80 [ 2883.205348] [<ffffffff811709ed>] ? dput+0xad/0x170 [ 2883.205355] [<ffffffff81163ffd>] ? path_put+0xd/0x20 [ 2883.205363] [<ffffffff8115a321>] ? SyS_chmod+0x41/0x90 [ 2883.205370] [<ffffffff814a0a29>] ? system_call_fastpath+0x16/0x1b -- 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