Re: "Corruption of in-memory data"

[Steve Lord <lord@sgi.com>]

On Mon, 2002-05-20 at 14:05, Sidik Isani wrote:
> Hello -
> 
>   Thanks again for your help several months ago with xfs_growfs!
>   Now we have a new problem . . .
>   I was trying to resolve the slow performance issue of some of our
>   RAID5+XFS (2.4.16 kernel) by upgrading to 2.4.18 and XFS-1.1, and
>   reformatting with an external log, as suggested in the FAQ.
> 
>   During resyncing, one of the disks failed and the raid 5 went into
>   degraded mode (no other disks had errors).  After a clean reboot, still
>   running in degraded mode, (shouldn't matter to XFS, but I thought I'd
>   mention it) everything seemed OK until I tried to remove a directory:
> 

Just from a quick scan, all your corruption is localized to two parts of
the volume, these are around the headers for allocation groups 14 and
17. I do not know if these areas will map onto the failed disk, but it
looks something like that. Destruction in these areas also appears
pretty drastic.

Steve

-- 

Steve Lord                                      voice: +1-651-683-3511
Principal Engineer, Filesystem Software         email: lord@sgi.com