This is my desktop system, running kernel 2.6.17.11. Kernel 2.6.17 was
previously installed, but I upgraded several weeks ago after I found out about
the corruption bug in 2.6.17, which may or may not be related to the
following.

The file system was shut down during a Debian package upgrade while trying to
access apt-related files. I booted into an old 2.4 kernel on a separate
partition and ran an old version of xfs_repair. The output is attached.
Xfs_repair terminated abnormally (see the end of the output).

I can copy a newer version of xfs_repair to the backup partition if that would
help, though I'm not sure which libraries to copy along with it.

Also, if there is any indication of what might have caused this I would be
interested, as this hasn't happened before and I'de especially like to find
out whether it is a hardware problem, or related to the current kernel, or
indeed a manifestation of the 2.6.17 bug. I've successfully mounted the
corrupted file system and a lot of it is still relatively intact - plenty of
files in lost+found, especially from the /usr/share/man3 directory for obvious
reasons.

It's a straightforward desktop machine with an IDE drive. I haven't updated
Debian packages on here for a while, so it isn't clear when the corruption
happened.