journal has aborted

[Mike Miller <mike miller hp com>]

All,
We are encountering spurious errors with ext3. After some period of heavy IO
we may see messages similiar to:

EXT3-fs error (device cciss/c0d0p5) in start_transaction: Journal has
aborted

When this happens the filesystem is remounted read-only. If it's the root
filesystem the system becomes unresponsive and must be rebooted. An fsck on
the affected filesystem shows lots of corruption.
Any ideas on what we can do to help isolate this problem? We have 64 nodes
and the problem is random.

Thanks,
mikem