Re: oops when creating an lvm-snapshot

[erik@xxxxxxxxxxxxxxxxx (Erik Tews)]

On Thu, Aug 15, 2002 at 12:49:38PM +0200, Erik Tews wrote:
> Ok, I fetched your patch from cvs today. Snapshot seems to work fine,
> but I cannot mount the snapshot. I did a mount -o nouuid
> /dev/master/xfssnap /snap and at this moment my kernel oopsed. The
> backtrace shows me that the oops happens in xfs_statfs which was called
> by linvfs_read_super which was called by get_sb_bdev. Can you reproduce
> this and do you know what happened?

And I found out that the kernel oopses even after a reboot. The message
is Unable to handle kernel NULL pointer dereference at virtual address
00000004

If I dd the xfs-snapshot to a file I can run xfs_repair on it and it
reports no problems and I can mount it loopback and everything seems to
be fine.