> > 2.6.22 kernel with hyperthreading enabled only ext3 filesystems (2).
> >
> > [ 346.314640] =======================================================
...
> > [ 346.349869] [<ffffffff>] 0xffffffff
> > [ 346.350438]
> > [ 346.350440] other info that might help us debug this:
> > [ 346.350442]
> > [ 346.350562] 3 locks held by tor/2421:
> > [ 346.350604] #0: (&inode->i_mutex){--..}, at: [<c121aa83>] mutex_lock+0x8/0xa
> > [ 346.350827] #1: (&ei->truncate_mutex){--..}, at: [<c121aa83>] mutex_lock+0x8/0xa
> > [ 346.351049] #2: (&s->s_dquot.dqptr_sem){----}, at: [<c10a485f>] dquot_alloc_space+0x50/0x189
> > [ 346.351274]
> > [ 346.351276] stack backtrace:
...
> > [ 346.353603] =======================
>
> Has been reported before, but I don't recall whether we fixed it. Jan,
> do you know>?
It is repeatable. Yesterday I changed from ata to sata and it still
occurs altough in a different proces:
[ 7382.917927]
Oh and it also seems it takes longer.
[ 7382.917929] =======================================================
[ 7382.918024] [ INFO: possible circular locking dependency detected ]
[ 7382.918072] 2.6.22 #2
[ 7382.918114] -------------------------------------------------------
[ 7382.918159] moo/17202 is trying to acquire lock:
[ 7382.918204] (tty_mutex){--..}, at: [<c1228353>] mutex_lock+0x8/0xa
[ 7382.918392]
[ 7382.918393] but task is already holding lock:
[ 7382.918474] (&s->s_dquot.dqptr_sem){----}, at: [<c10a47a3>] dquot_alloc_space+0x50/0x189
[ 7382.918665]
[ 7382.918666] which lock already depends on the new lock.
[ 7382.918668]
[ 7382.918788]
[ 7382.918789] the existing dependency chain (in reverse order) is:
[ 7382.918873]
[ 7382.918874] -> #4 (&s->s_dquot.dqptr_sem){----}:
[ 7382.919061] [<c103b232>] check_prev_add+0x15b/0x281
[ 7382.919378] [<c103b3e3>] check_prevs_add+0x8b/0xe8
[ 7382.919690] [<c103cd6e>] __lock_acquire+0x65d/0xb51
[ 7382.920004] [<c103d6ca>] lock_acquire+0x62/0x81
[ 7382.920322] [<c10340f3>] down_read+0x2b/0x3d
[ 7382.920635] [<c10a47a3>] dquot_alloc_space+0x50/0x189
[ 7382.920957] [<c10b5b99>] ext3_new_blocks+0x44b/0x5a2
[ 7382.921280] [<c10b8128>] ext3_alloc_blocks+0x40/0xdf
[ 7382.921592] [<c10b8217>] ext3_alloc_branch+0x50/0x21b
[ 7382.921906] [<c10b86f5>] ext3_get_blocks_handle+0x1b8/0x367
[ 7382.922222] [<c10b8a1e>] ext3_getblk+0x97/0x228
[ 7382.922534] [<c10b8bc9>] ext3_bread+0x1a/0x78
[ 7382.922844] [<c10bdda8>] ext3_mkdir+0xf4/0x270
[ 7382.923160] [<c107cd3a>] vfs_mkdir+0xb3/0x161
[ 7382.923474] [<c107ce74>] sys_mkdirat+0x8c/0xc4
[ 7382.923789] [<c107cecc>] sys_mkdir+0x20/0x22
[ 7382.924106] [<c1003eea>] syscall_call+0x7/0xb
[ 7382.924425] [<ffffffff>] 0xffffffff
[ 7382.924752]
[ 7382.924753] -> #3 (&ei->truncate_mutex){--..}:
[ 7382.924939] [<c103b232>] check_prev_add+0x15b/0x281
[ 7382.925257] [<c103b3e3>] check_prevs_add+0x8b/0xe8
[ 7382.925571] [<c103cd6e>] __lock_acquire+0x65d/0xb51
[ 7382.925886] [<c103d6ca>] lock_acquire+0x62/0x81
[ 7382.926202] [<c12283d4>] __mutex_lock_slowpath+0x75/0x28c
[ 7382.926782] [<c1228353>] mutex_lock+0x8/0xa
[ 7382.927101] [<c10ba2c4>] ext3_truncate+0x170/0x468
[ 7382.927414] [<c1060dde>] vmtruncate+0xa6/0x116
[ 7382.927726] [<c108787b>] inode_setattr+0x145/0x16c
[ 7382.928041] [<c10bb245>] ext3_setattr+0x150/0x22f
[ 7382.928358] [<c1087bf4>] notify_change+0x352/0x386
[ 7382.928672] [<c1071a38>] do_truncate+0x5c/0x7f
[ 7382.928988] [<c107c227>] may_open+0x1ec/0x231
[ 7382.929289] [<c107c3e8>] open_namei+0xdd/0x5a2
[ 7382.929298] [<c107269f>] do_filp_open+0x2c/0x53
[ 7382.929308] [<c10729d4>] do_sys_open+0x52/0xd8
[ 7382.929316] [<c1072a76>] sys_open+0x1c/0x1e
[ 7382.929323] [<c1003eea>] syscall_call+0x7/0xb
[ 7382.929332] [<ffffffff>] 0xffffffff
[ 7382.929351]
[ 7382.929352] -> #2 (&inode->i_alloc_sem){--..}:
[ 7382.929358] [<c103b232>] check_prev_add+0x15b/0x281
[ 7382.929367] [<c103b3e3>] check_prevs_add+0x8b/0xe8
[ 7382.929374] [<c103cd6e>] __lock_acquire+0x65d/0xb51
[ 7382.929382] [<c103d6ca>] lock_acquire+0x62/0x81
[ 7382.929390] [<c1034189>] down_write+0x2b/0x45
[ 7382.929401] [<c1087b7b>] notify_change+0x2d9/0x386
[ 7382.929409] [<c1071a38>] do_truncate+0x5c/0x7f
[ 7382.929416] [<c107c227>] may_open+0x1ec/0x231
[ 7382.929423] [<c107c3e8>] open_namei+0xdd/0x5a2
[ 7382.929430] [<c107269f>] do_filp_open+0x2c/0x53
[ 7382.929441] [<c10729d4>] do_sys_open+0x52/0xd8
[ 7382.929449] [<c1072a76>] sys_open+0x1c/0x1e
[ 7382.929455] [<c1003eea>] syscall_call+0x7/0xb
[ 7382.929463] [<ffffffff>] 0xffffffff
[ 7382.929471]
[ 7382.929472] -> #1 (&sysfs_inode_imutex_key){--..}:
[ 7382.929481] [<c103b232>] check_prev_add+0x15b/0x281
[ 7382.929489] [<c103b3e3>] check_prevs_add+0x8b/0xe8
[ 7382.929496] [<c103cd6e>] __lock_acquire+0x65d/0xb51
[ 7382.929505] [<c103d6ca>] lock_acquire+0x62/0x81
[ 7382.929512] [<c12283d4>] __mutex_lock_slowpath+0x75/0x28c
[ 7382.929523] [<c1228353>] mutex_lock+0x8/0xa
[ 7382.929531] [<c10b276c>] remove_dir+0x2c/0xf1
[ 7382.929538] [<c10b2839>] sysfs_remove_subdir+0x8/0xa
[ 7382.929547] [<c10b3c13>] sysfs_remove_group+0x67/0x78
[ 7382.929554] [<c115cd9c>] dpm_sysfs_remove+0x12/0x16
[ 7382.929563] [<c115c4b3>] device_pm_remove+0x21/0x62
[ 7382.929570] [<c1156f09>] device_del+0x82/0x291
[ 7382.929578] [<c1157123>] device_unregister+0xb/0x15
[ 7382.929585] [<c115731e>] device_destroy+0x8d/0x9a
[ 7382.929592] [<c1142856>] vcs_remove_sysfs+0x1c/0x3a
[ 7382.929600] [<c11491b9>] con_close+0x5e/0x6b
[ 7382.929607] [<c113aba2>] release_dev+0x4c4/0x6ce
[ 7382.929614] [<c113b21a>] tty_release+0x12/0x1c
[ 7382.929620] [<c10743bd>] __fput+0x145/0x16e
[ 7382.929628] [<c1074276>] fput+0x19/0x1b
[ 7382.929634] [<c1072af7>] filp_close+0x3c/0x75
[ 7382.929641] [<c1072b99>] sys_close+0x69/0xb4
[ 7382.929648] [<c1003eea>] syscall_call+0x7/0xb
[ 7382.929654] [<ffffffff>] 0xffffffff
[ 7382.929665]
[ 7382.929666] -> #0 (tty_mutex){--..}:
[ 7382.929670] [<c103b10b>] check_prev_add+0x34/0x281
[ 7382.929677] [<c103b3e3>] check_prevs_add+0x8b/0xe8
[ 7382.929684] [<c103cd6e>] __lock_acquire+0x65d/0xb51
[ 7382.929691] [<c103d6ca>] lock_acquire+0x62/0x81
[ 7382.929698] [<c12283d4>] __mutex_lock_slowpath+0x75/0x28c
[ 7382.929706] [<c1228353>] mutex_lock+0x8/0xa
[ 7382.929712] [<c10a4119>] print_warning+0x8c/0x15d
[ 7382.929720] [<c10a48d7>] dquot_alloc_space+0x184/0x189
[ 7382.929727] [<c10b5b99>] ext3_new_blocks+0x44b/0x5a2
[ 7382.929735] [<c10b8128>] ext3_alloc_blocks+0x40/0xdf
[ 7382.929741] [<c10b8217>] ext3_alloc_branch+0x50/0x21b
[ 7382.929748] [<c10b86f5>] ext3_get_blocks_handle+0x1b8/0x367
[ 7382.929755] [<c10b891c>] ext3_get_block+0x78/0xe3
[ 7382.929761] [<c1094746>] __block_prepare_write+0x168/0x415
[ 7382.929770] [<c1095252>] block_prepare_write+0x28/0x3b
[ 7382.929777] [<c10b8dc8>] ext3_prepare_write+0xe3/0x17e
[ 7382.929784] [<c1055235>] generic_file_buffered_write+0x1b4/0x614
[ 7382.929792] [<c10558cf>] __generic_file_aio_write_nolock+0x23a/0x533
[ 7382.929800] [<c1055cd1>] generic_file_aio_write+0x58/0xc4
[ 7382.929807] [<c10b69d7>] ext3_file_write+0x2d/0xba
[ 7382.929815] [<c107347f>] do_sync_write+0xc7/0x116
[ 7382.929822] [<c1073626>] vfs_write+0x158/0x15d
[ 7382.929829] [<c10736cc>] sys_write+0x3d/0x64
[ 7382.929835] [<c1003eea>] syscall_call+0x7/0xb
[ 7382.929842] [<ffffffff>] 0xffffffff
[ 7382.929851]
[ 7382.929852] other info that might help us debug this:
[ 7382.929853]
[ 7382.929855] 3 locks held by moo/17202:
[ 7382.929857] #0: (&inode->i_mutex){--..}, at: [<c1228353>] mutex_lock+0x8/0xa
[ 7382.929864] #1: (&ei->truncate_mutex){--..}, at: [<c1228353>] mutex_lock+0x8/0xa
[ 7382.929871] #2: (&s->s_dquot.dqptr_sem){----}, at: [<c10a47a3>] dquot_alloc_space+0x50/0x189
[ 7382.929877]
[ 7382.929878] stack backtrace:
[ 7382.929880] [<c1004cac>] show_trace_log_lvl+0x1a/0x30
[ 7382.929885] [<c1004cd4>] show_trace+0x12/0x14
[ 7382.929888] [<c1004dce>] dump_stack+0x16/0x18
[ 7382.929892] [<c103aa6d>] print_circular_bug_tail+0x6f/0x71
[ 7382.929896] [<c103b10b>] check_prev_add+0x34/0x281
[ 7382.929900] [<c103b3e3>] check_prevs_add+0x8b/0xe8
[ 7382.929903] [<c103cd6e>] __lock_acquire+0x65d/0xb51
[ 7382.929907] [<c103d6ca>] lock_acquire+0x62/0x81
[ 7382.929911] [<c12283d4>] __mutex_lock_slowpath+0x75/0x28c
[ 7382.929915] [<c1228353>] mutex_lock+0x8/0xa
[ 7382.929919] [<c10a4119>] print_warning+0x8c/0x15d
[ 7382.929923] [<c10a48d7>] dquot_alloc_space+0x184/0x189
[ 7382.929926] [<c10b5b99>] ext3_new_blocks+0x44b/0x5a2
[ 7382.929931] [<c10b8128>] ext3_alloc_blocks+0x40/0xdf
[ 7382.929934] [<c10b8217>] ext3_alloc_branch+0x50/0x21b
[ 7382.929937] [<c10b86f5>] ext3_get_blocks_handle+0x1b8/0x367
[ 7382.929941] [<c10b891c>] ext3_get_block+0x78/0xe3
[ 7382.929944] [<c1094746>] __block_prepare_write+0x168/0x415
[ 7382.929949] [<c1095252>] block_prepare_write+0x28/0x3b
[ 7382.929953] [<c10b8dc8>] ext3_prepare_write+0xe3/0x17e
[ 7382.929957] [<c1055235>] generic_file_buffered_write+0x1b4/0x614
[ 7382.929961] [<c10558cf>] __generic_file_aio_write_nolock+0x23a/0x533
[ 7382.929966] [<c1055cd1>] generic_file_aio_write+0x58/0xc4
[ 7382.929970] [<c10b69d7>] ext3_file_write+0x2d/0xba
[ 7382.929974] [<c107347f>] do_sync_write+0xc7/0x116
[ 7382.929978] [<c1073626>] vfs_write+0x158/0x15d
[ 7382.929981] [<c10736cc>] sys_write+0x3d/0x64
[ 7382.929985] [<c1003eea>] syscall_call+0x7/0xb
[ 7382.929988] =======================
Folkert van Heusden
--
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