Messages in this thread | | | Date | Tue, 22 Dec 2009 20:50:21 -0800 | Subject | lockdep with reiserfs | From | Yinghai Lu <> |
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x:~ # mount /dev/sda2 /xx
[ 277.586941] ======================================================= [ 277.594680] [ INFO: possible circular locking dependency detected ] [ 277.601299] 2.6.33-rc1-tip-yh-00304-g97a015d-dirty #1007 [ 277.605492] ------------------------------------------------------- [ 277.622611] mount/19427 is trying to acquire lock: [ 277.627353] (&journal->j_mutex){+.+...}, at: [<ffffffff811c6d40>] do_journal_begin_r+0x9f/0x308 [ 277.645049] [ 277.645050] but task is already holding lock: [ 277.659112] (&REISERFS_SB(s)->lock){+.+.+.}, at: [<ffffffff811cc0b0>] reiserfs_write_lock+0x30/0x42 [ 277.677168] [ 277.677169] which lock already depends on the new lock. [ 277.677170] [ 277.685840] [ 277.685841] the existing dependency chain (in reverse order) is: [ 277.700845] [ 277.700845] -> #1 (&REISERFS_SB(s)->lock){+.+.+.}: [ 277.707089] [<ffffffff810a8735>] check_prev_add+0x3ca/0x583 [ 277.723457] [<ffffffff810a8d4b>] validate_chain+0x45d/0x567 [ 277.738331] [<ffffffff810a9605>] __lock_acquire+0x7b0/0x838 [ 277.745738] [<ffffffff810a9751>] lock_acquire+0xc4/0xe1 [ 277.758903] [<ffffffff81d305bf>] mutex_lock_nested+0x68/0x2d2 [ 277.765408] [<ffffffff811cc0b0>] reiserfs_write_lock+0x30/0x42 [ 277.780623] [<ffffffff811c6d48>] do_journal_begin_r+0xa7/0x308 [ 277.788070] [<ffffffff811c717c>] journal_begin+0xcb/0x10f [ 277.801530] [<ffffffff811b924f>] reiserfs_fill_super+0x6f6/0xa04 [ 277.818144] [<ffffffff81134094>] get_sb_bdev+0x134/0x17f [ 277.824414] [<ffffffff811b67b7>] get_super_block+0x18/0x1a [ 277.838452] [<ffffffff81132d81>] vfs_kern_mount+0x5b/0xce [ 277.843123] [<ffffffff81132e5b>] do_kern_mount+0x4c/0xec [ 277.858708] [<ffffffff8114aa43>] do_mount+0x1c7/0x228 [ 277.865063] [<ffffffff8114ab28>] sys_mount+0x84/0xc4 [ 277.879329] [<ffffffff81033bdb>] system_call_fastpath+0x16/0x1b [ 277.885762] [ 277.885763] -> #0 (&journal->j_mutex){+.+...}: [ 277.900836] [<ffffffff810a8464>] check_prev_add+0xf9/0x583 [ 277.905844] [<ffffffff810a8d4b>] validate_chain+0x45d/0x567 [ 277.921016] [<ffffffff810a9605>] __lock_acquire+0x7b0/0x838 [ 277.937549] [<ffffffff810a9751>] lock_acquire+0xc4/0xe1 [ 277.941772] [<ffffffff81d305bf>] mutex_lock_nested+0x68/0x2d2 [ 277.958127] [<ffffffff811c6d40>] do_journal_begin_r+0x9f/0x308 [ 277.964631] [<ffffffff811c717c>] journal_begin+0xcb/0x10f [ 277.978818] [<ffffffff811b24cd>] reiserfs_delete_inode+0x96/0x141 [ 277.984215] [<ffffffff81145b40>] generic_delete_inode+0xe1/0x174 [ 278.002166] [<ffffffff81145bef>] generic_drop_inode+0x1c/0x67 [ 278.016829] [<ffffffff81144a31>] iput+0x66/0x6a [ 278.022807] [<ffffffff811b8294>] finish_unfinished+0x47a/0x529 [ 278.037406] [<ffffffff811b93ef>] reiserfs_fill_super+0x896/0xa04 [ 278.042843] [<ffffffff81134094>] get_sb_bdev+0x134/0x17f [ 278.058832] [<ffffffff811b67b7>] get_super_block+0x18/0x1a [ 278.064476] [<ffffffff81132d81>] vfs_kern_mount+0x5b/0xce [ 278.079763] [<ffffffff81132e5b>] do_kern_mount+0x4c/0xec [ 278.085409] [<ffffffff8114aa43>] do_mount+0x1c7/0x228 [ 278.099487] [<ffffffff8114ab28>] sys_mount+0x84/0xc4 [ 278.104554] [<ffffffff81033bdb>] system_call_fastpath+0x16/0x1b [ 278.120594] [ 278.120594] other info that might help us debug this: [ 278.120595] [ 278.137861] 2 locks held by mount/19427: [ 278.142048] #0: (&type->s_umount_key#17/1){+.+.+.}, at: [<ffffffff8113398d>] alloc_super+0x153/0x227 [ 278.161051] #1: (&REISERFS_SB(s)->lock){+.+.+.}, at: [<ffffffff811cc0b0>] reiserfs_write_lock+0x30/0x42 [ 278.178694] [ 278.178694] stack backtrace: [ 278.183421] Pid: 19427, comm: mount Not tainted 2.6.33-rc1-tip-yh-00304-g97a015d-dirty #1007 [ 278.200418] Call Trace: [ 278.203357] [<ffffffff810a7dcc>] print_circular_bug+0xb3/0xc2 [ 278.218174] [<ffffffff810a8464>] check_prev_add+0xf9/0x583 [ 278.223784] [<ffffffff810a8d4b>] validate_chain+0x45d/0x567 [ 278.238230] [<ffffffff810a9605>] __lock_acquire+0x7b0/0x838 [ 278.244997] [<ffffffff81d303de>] ? __mutex_unlock_slowpath+0x112/0x11e [ 278.259664] [<ffffffff810a9751>] lock_acquire+0xc4/0xe1 [ 278.264989] [<ffffffff811c6d40>] ? do_journal_begin_r+0x9f/0x308 [ 278.278800] [<ffffffff81d305bf>] mutex_lock_nested+0x68/0x2d2 [ 278.284152] [<ffffffff811c6d40>] ? do_journal_begin_r+0x9f/0x308 [ 278.299640] [<ffffffff811c6d40>] ? do_journal_begin_r+0x9f/0x308 [ 278.305289] [<ffffffff811cb418>] ? reiserfs_for_each_xattr+0x72/0x2ad [ 278.322801] [<ffffffff8109b2c8>] ? cpu_clock+0x2d/0x3f [ 278.336165] [<ffffffff811c6d40>] do_journal_begin_r+0x9f/0x308 [ 278.341890] [<ffffffff810a5c2e>] ? trace_hardirqs_off_caller+0x1f/0xa9 [ 278.357094] [<ffffffff811c717c>] journal_begin+0xcb/0x10f [ 278.362825] [<ffffffff811b24cd>] reiserfs_delete_inode+0x96/0x141 [ 278.377094] [<ffffffff811b2437>] ? reiserfs_delete_inode+0x0/0x141 [ 278.383601] [<ffffffff81145b40>] generic_delete_inode+0xe1/0x174 [ 278.398309] [<ffffffff81145bef>] generic_drop_inode+0x1c/0x67 [ 278.403863] [<ffffffff81144a31>] iput+0x66/0x6a [ 278.418387] [<ffffffff811b8294>] finish_unfinished+0x47a/0x529 [ 278.422333] [<ffffffff811cc0b0>] ? reiserfs_write_lock+0x30/0x42 [ 278.438673] [<ffffffff810a6f29>] ? trace_hardirqs_on+0xd/0xf [ 278.444584] [<ffffffff811b93ef>] reiserfs_fill_super+0x896/0xa04 [ 278.459330] [<ffffffff81134094>] get_sb_bdev+0x134/0x17f [ 278.464098] [<ffffffff811b8b59>] ? reiserfs_fill_super+0x0/0xa04 [ 278.479768] [<ffffffff811b67b7>] get_super_block+0x18/0x1a [ 278.484545] [<ffffffff81132d81>] vfs_kern_mount+0x5b/0xce [ 278.500296] [<ffffffff81132e5b>] do_kern_mount+0x4c/0xec [ 278.506534] [<ffffffff8114aa43>] do_mount+0x1c7/0x228 [ 278.518910] [<ffffffff8114ab28>] sys_mount+0x84/0xc4 [ 278.522530] [<ffffffff81d31bfe>] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 278.541059] [<ffffffff81033bdb>] system_call_fastpath+0x16/0x1b [ 278.555566] done [ 278.557459] REISERFS (device sda2): There were 1 uncompleted unlinks/truncates. Completed
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