Andrew Klaassen wrote:
> I've consistently been getting "Unable to handle kernel NULL
> pointer dereference" errors when unmounting an XFS filesystem
> which I had created on a RAID5 device. This occurs with both
> the beta XFS and the latest CVS.
> Is this a known bug? Would more information be useful for you?
This sounds suspiciously like something I had to track down. The easy
answer is: look for the raid5 patch posted last week by Russell
Cattelan. Another easy answer is to look for 'mark_buffer_clean()' in
raid5.c, and remove the line. That should fix you up.
"Men occasionally stumble over the truth, but most of them pick
themselves up and hurry off as if nothing had happened."
-- Winston Churchill