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Oliver Neukum wrote:
> Hi,
>
> I got this in the log. No noticeable ill effect. 2.6.28-rc8 on x86_64.
>
Yup. I know about this one. Maybe I'll actually get around to pushing my
reiserfs patchset for the 2.6.29 window.
- -Jeff
>
> Dec 15 09:50:53 vanamonde kernel:
> Dec 15 09:50:53 vanamonde kernel: =======================================================
> Dec 15 09:50:53 vanamonde kernel: [ INFO: possible circular locking dependency detected ]
> Dec 15 09:50:53 vanamonde kernel: 2.6.28-rc8-default #3
> Dec 15 09:50:53 vanamonde kernel: -------------------------------------------------------
> Dec 15 09:50:53 vanamonde kernel: kmail/3204 is trying to acquire lock:
> Dec 15 09:50:53 vanamonde kernel: (&sb->s_type->i_mutex_key#12){--..}, at: [<ffffffff802beb25>] vfs_rmdir+0x8b/0x104
> Dec 15 09:50:53 vanamonde kernel:
> Dec 15 09:50:53 vanamonde kernel: but task is already holding lock:
> Dec 15 09:50:53 vanamonde kernel: (&REISERFS_SB(s)->xattr_dir_sem){----}, at: [<ffffffffa04b25f5>] reiserfs_delete_xattrs+0xff/0x16b [reiserfs]
> Dec 15 09:50:53 vanamonde kernel:
> Dec 15 09:50:53 vanamonde kernel: which lock already depends on the new lock.
> Dec 15 09:50:53 vanamonde kernel:
> Dec 15 09:50:53 vanamonde kernel:
> Dec 15 09:50:53 vanamonde kernel: the existing dependency chain (in reverse order) is:
> Dec 15 09:50:53 vanamonde kernel:
> Dec 15 09:50:53 vanamonde kernel: -> #1 (&REISERFS_SB(s)->xattr_dir_sem){----}:
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff8026231b>] __lock_acquire+0x1291/0x15be
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802626d5>] lock_acquire+0x8d/0xba
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff804716f9>] down_read+0x45/0x52
> Dec 15 09:50:53 vanamonde kernel: [<ffffffffa04b3b94>] reiserfs_acl_chmod+0x69/0x1c0 [reiserfs]
> Dec 15 09:50:53 vanamonde kernel: [<ffffffffa0496c30>] reiserfs_setattr+0x243/0x26b [reiserfs]
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802c92ba>] notify_change+0x194/0x2da
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802b518c>] sys_fchmodat+0x91/0xbd
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802b51cb>] sys_chmod+0x13/0x15
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff8020c05a>] system_call_fastpath+0x16/0x1b
> Dec 15 09:50:53 vanamonde kernel: [<ffffffffffffffff>] 0xffffffffffffffff
> Dec 15 09:50:53 vanamonde kernel:
> Dec 15 09:50:53 vanamonde kernel: -> #0 (&sb->s_type->i_mutex_key#12){--..}:
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff8026202c>] __lock_acquire+0xfa2/0x15be
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802626d5>] lock_acquire+0x8d/0xba
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff80470e24>] mutex_lock_nested+0xf9/0x2a0
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802beb25>] vfs_rmdir+0x8b/0x104
> Dec 15 09:50:53 vanamonde kernel: [<ffffffffa04b2601>] reiserfs_delete_xattrs+0x10b/0x16b [reiserfs]
> Dec 15 09:50:53 vanamonde kernel: [<ffffffffa049a65e>] reiserfs_delete_inode+0x75/0x11b [reiserfs]
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802c89bc>] generic_delete_inode+0xb8/0x145
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802c8a60>] generic_drop_inode+0x17/0x17c
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802c7aa1>] iput+0x61/0x65
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802c0b40>] do_unlinkat+0x103/0x159
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802c0ba7>] sys_unlink+0x11/0x13
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff8020c05a>] system_call_fastpath+0x16/0x1b
> Dec 15 09:50:53 vanamonde kernel: [<ffffffffffffffff>] 0xffffffffffffffff
> Dec 15 09:50:53 vanamonde kernel:
> Dec 15 09:50:53 vanamonde kernel: other info that might help us debug this:
> Dec 15 09:50:53 vanamonde kernel:
> Dec 15 09:50:53 vanamonde kernel: 1 lock held by kmail/3204:
> Dec 15 09:50:53 vanamonde kernel: #0: (&REISERFS_SB(s)->xattr_dir_sem){----}, at: [<ffffffffa04b25f5>] reiserfs_delete_xattrs+0xff/0x16b [reiserfs]
> Dec 15 09:50:53 vanamonde kernel:
> Dec 15 09:50:53 vanamonde kernel: stack backtrace:
> Dec 15 09:50:53 vanamonde kernel: Pid: 3204, comm: kmail Not tainted 2.6.28-rc8-default #3
> Dec 15 09:50:53 vanamonde kernel: Call Trace:
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff80260ccc>] print_circular_bug_tail+0xb8/0xc3
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff8026202c>] __lock_acquire+0xfa2/0x15be
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802626d5>] lock_acquire+0x8d/0xba
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802beb25>] ? vfs_rmdir+0x8b/0x104
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff80470e24>] mutex_lock_nested+0xf9/0x2a0
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802beb25>] ? vfs_rmdir+0x8b/0x104
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802beb25>] ? vfs_rmdir+0x8b/0x104
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff804729fa>] ? _spin_unlock_irq+0x2b/0x37
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802be128>] ? may_delete+0x65/0x147
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802beb25>] vfs_rmdir+0x8b/0x104
> Dec 15 09:50:53 vanamonde kernel: [<ffffffffa04b2601>] reiserfs_delete_xattrs+0x10b/0x16b [reiserfs]
> Dec 15 09:50:53 vanamonde kernel: [<ffffffffa049a65e>] reiserfs_delete_inode+0x75/0x11b [reiserfs]
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff80345a17>] ? _raw_spin_unlock+0x8e/0x94
> Dec 15 09:50:53 vanamonde kernel: [<ffffffffa049a5e9>] ? reiserfs_delete_inode+0x0/0x11b [reiserfs]
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802c89bc>] generic_delete_inode+0xb8/0x145
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802c8a60>] generic_drop_inode+0x17/0x17c
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802c7aa1>] iput+0x61/0x65
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802c0b40>] do_unlinkat+0x103/0x159
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff8020c0aa>] ? sysret_check+0x46/0x81
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff8026073b>] ? trace_hardirqs_on_caller+0xf6/0x11a
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff804725f3>] ? trace_hardirqs_on_thunk+0x3a/0x3f
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802c0543>] ? do_path_lookup+0x47/0x1c8
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff802c0ba7>] sys_unlink+0x11/0x13
> Dec 15 09:50:53 vanamonde kernel: [<ffffffff8020c05a>] system_call_fastpath+0x16/0x1b
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- --
Jeff Mahoney
SUSE Labs
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