Bug#294826: [Evms-devel] Re: Bug#294826: kernel-image-2.4.27-1-686-smp: kernel panic in dm_snapshot.c
Hi Alexander,
On Wed March 9 2005 2:08 am, Alexander N. Kogan wrote:
> > > > > I use EVMS snapshots on my server. When I reset snapshots,
> > > > > sometimes system crashes in dm_snapshot.c. Sorry I can't provide
> > > > > more information, because crash dump was only on the screen and the
> > > > > server was restarted after crash. When next crash occures I'll send
> > > > > you more detailed information. My disk configuration is below.
> > > > > Please see the last line about /dev/evms/var_snap - system crashed
> > > > > when this snapshot was resetted.
> >
> > Did this system crash occur again? Or was it a one-time failure?
>
> It crashes again when snapshots were resetted several times. Please see
> attached screenshot. Error occurs in line 1064 of dm-snapshot.c
Ah, I see what's going on now. It's hitting the BUG statement in
dm-snapshot.c::do_origin(), but EVMS provides a work-around for this issue.
You should apply evms-2.5.1/kernel/2.4/dm-snapshot.patch to your kernel
before using snapshots with EVMS. I'd also recommend reading over
http://evms.sourceforge.net/install/kernel.html just to make sure you have
all the DM kernel patches necessary for your system.
Let me know if that works for you.
--
Kevin Corry
kevcorry@us.ibm.com
http://www.ibm.com/linux/ltc/
http://evms.sourceforge.net/
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