XFS internal error xfs_trans_cancel at line 1138 of file fs/xfs/xfs_trans.c (kernel 2.6.18.1)

["Jesper Juhl" <jesper.juhl@gmail.com>]

Hi,

One of my NFS servers just gave me a nasty surprise that I think it is
relevant to tell you about:

Filesystem "dm-1": XFS internal error xfs_trans_cancel at line 1138 of
file fs/xfs/xfs_trans.c.  Caller 0xffffffff8034b47e

Call Trace:
 [<ffffffff8020b122>] show_trace+0xb2/0x380
 [<ffffffff8020b405>] dump_stack+0x15/0x20
 [<ffffffff80327b4c>] xfs_error_report+0x3c/0x50
 [<ffffffff803435ae>] xfs_trans_cancel+0x6e/0x130
 [<ffffffff8034b47e>] xfs_create+0x5ee/0x6a0
 [<ffffffff80356556>] xfs_vn_mknod+0x156/0x2e0
 [<ffffffff803566eb>] xfs_vn_create+0xb/0x10
 [<ffffffff80284b2c>] vfs_create+0x8c/0xd0
 [<ffffffff802e734a>] nfsd_create_v3+0x31a/0x560
 [<ffffffff802ec838>] nfsd3_proc_create+0x148/0x170
 [<ffffffff802e19f9>] nfsd_dispatch+0xf9/0x1e0
 [<ffffffff8049d617>] svc_process+0x437/0x6e0
 [<ffffffff802e176d>] nfsd+0x1cd/0x360
 [<ffffffff8020ab1c>] child_rip+0xa/0x12
xfs_force_shutdown(dm-1,0x8) called from line 1139 of file
fs/xfs/xfs_trans.c.  Return address = 0xffffffff80359daa
Filesystem "dm-1": Corruption of in-memory data detected.  Shutting
down filesystem: dm-1
Please umount the filesystem, and rectify the problem(s)
nfsd: non-standard errno: 5
nfsd: non-standard errno: 5
nfsd: non-standard errno: 5
nfsd: non-standard errno: 5
nfsd: non-standard errno: 5
          (the above message repeates 1670 times, then the following)
xfs_force_shutdown(dm-1,0x1) called from line 424 of file
fs/xfs/xfs_rw.c.  Return address = 0xffffffff80359daa

I unmounted the filesystem, ran xfs_repair which told me to try an
mount it first to replay the log, so I did, unmounted it again, ran
xfs_repair (which didn't find any problems) and finally mounted it and
everything is good - the filesystem seems intact.

Filesystem "dm-1": Disabling barriers, not supported with external log device
XFS mounting filesystem dm-1
Starting XFS recovery on filesystem: dm-1 (logdev: /dev/Log1/ws22_log)
Ending XFS recovery on filesystem: dm-1 (logdev: /dev/Log1/ws22_log)
Filesystem "dm-1": Disabling barriers, not supported with external log device
XFS mounting filesystem dm-1
Ending clean XFS mount for filesystem: dm-1


The server in question is running kernel 2.6.18.1


-- 
Jesper Juhl <jesper.juhl@gmail.com>
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