linux-kernel - Re: XFS internal error

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Message-ID: <20080310223018.GA155407@sgi.com>
Date:	Tue, 11 Mar 2008 09:30:18 +1100
From:	David Chinner <dgc@....com>
To:	Andreas Kotes <count-linux@...tline.de>
Cc:	David Chinner <dgc@....com>, linux-kernel@...r.kernel.org,
	xfs@....sgi.com
Subject: Re: XFS internal error

On Mon, Mar 10, 2008 at 01:22:16PM +0100, Andreas Kotes wrote:
> Hello,
> 
> * David Chinner <dgc@....com> [20080310 13:18]:
> > Yes, but those previous corruptions get left on disk as a landmine
> > for you to trip over some time later, even on a kernel that has the
> > bug fixed.
> > 
> > I suggest that you run xfs_check on the filesystem and if that
> > shows up errors, run xfs_repair onteh filesystem to correct them.
> 
> I seem to be having similiar problems, and xfs_repair is not helping :(

xfs_repair is ensuring that the problem is not being caused by on-disk
corruption. In this case, it does not appear to be caused by on-disk
corruption, so xfs_repair won't help.

> I always run into:
> 
> [  137.099267] Filesystem "sda2": XFS internal error xfs_trans_cancel at line 1132 of file fs/xfs/xfs_trans.c.  Caller 0xffffffff80372156
> [  137.106267]
> [  137.106268] Call Trace:
> [  137.113129]  [<ffffffff803692f0>] xfs_trans_cancel+0x100/0x130
> [  137.116524]  [<ffffffff80372156>] xfs_create+0x256/0x6e0
> [  137.119904]  [<ffffffff80341e09>] xfs_dir2_isleaf+0x19/0x50
> [  137.123269]  [<ffffffff8037e145>] xfs_vn_mknod+0x195/0x250
> [  137.126607]  [<ffffffff8028f32c>] vfs_create+0xac/0xf0
> [  137.129920]  [<ffffffff80292b3c>] open_namei+0x5dc/0x700
> [  137.133227]  [<ffffffff8022a443>] __wake_up+0x43/0x70
> [  137.136477]  [<ffffffff802851bc>] do_filp_open+0x1c/0x50
> [  137.139693]  [<ffffffff8028524a>] do_sys_open+0x5a/0x100
> [  137.142838]  [<ffffffff80220a83>] sysenter_do_call+0x1b/0x67
> [  137.145964]
> [  137.149014] xfs_force_shutdown(sda2,0x8) called from line 1133 of file fs/xfs/xfs_trans.c.  Return address = 0xffffffff8036930e
> [  137.163485] Filesystem "sda2": Corruption of in-memory data detected.  Shutting down filesystem: sda2
> 
> directly after booting.

Interesting. I think I just found a cause of this shutdown under
certain circumstances:

http://marc.info/?l=linux-xfs&m=120518791828200&w=2

To confirm it might be the same issue, can you dump the superblock of this
filesystem for me?  i.e.:

# xfs_db -r -c 'sb 0' -c p /dev/sda2

Also, what the mount options you are using are?

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group
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