Re: XFS internal error xfs_da_do_buf

[Eric Sandeen]

Sami Farin wrote:
> I setup namespace for /tmp and /var/tmp 
> ( pam_namespace.so into /etc/pam.d/{su,login} )
> and something did not like something I did:
> 
> [322593.844838] 0x0: 00 00 00 00 2b 00 00 11 20 21 00 00 00 68 ff ff 
> [322593.844854] Filesystem "sda8": XFS internal error xfs_da_do_buf(2) at line 2087 of file fs/xfs/xfs_da_btree.c.  Caller 0xc0230808
...
> sda8 is /usr , I haven't played with mount --bind or namespaces
> at /usr (AFAIK).
> 
> My sda hard disk is not broken and I have SMP kernel 2.6.19.2 + Pentium D.
> I have got no other BUGs or xfs errors and I can access /usr and other
> partitions OK.
> 

I'd try xfs_repair.  The error above means xfs read something unexpected
for metadata, which did not match the magic numbers it was expecting.  I
suppose the error message could be more informative in that regard...

The buffer it read contained this at the beginning:

0x0: 00 00 00 00 2b 00 00 11 20 21 00 00 00 68 ff ff

but I'm not sure that offers any real insight.

-Eric
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