kernel panic when using lvm

[Chantal Rosmuller]

I have two servers with Ubuntu 8.04 and the xen kernel, I use lvm
volumes for the xen guests. On different occasions the servers
crashed, all the crashes happened during lvm actions (for example when
I made an lvm snapshot or when I tried to build an ext3 filesystem on
a new logical volume).

uname -a:

Linux servername 2.6.24-16-xen #2 SMP Sun Apr 20 05:49:43 JST 2008
i686 GNU/Linux

There is nothing in /var/log/messages

is this a bug? I have the same setup on a debian server and I never
had a problem there.

Thanks!

regards Chantal