In gmane.linux.raid Georg C. F. Greve [off-list ref] wrote:
The message I saw on the remote console when it crashed with pure ext3
on raid5 was:
Assertion failure in journal_start() at fs/jbd/transaction.c:271: "handle->h_transaction->t_journal == journal"
Yes, well, don't put the journal on the raid partition. Put it
elsewhere (anyway, journalling and raid do not mix, as write ordering
is not - deliberately - preserved in raid, as far as I can tell).
Peter