[linux-lvm] Oops when running snapshots
andrew at fc.hp.com
Thu Jul 10 12:28:02 UTC 2003
On Thu, 2003-07-10 at 03:32, Heinz J . Mauelshagen wrote:
> On Wed, Jul 09, 2003 at 04:26:36PM -0600, Andrew Patterson wrote:
> > Ran a load test last night where we created snapshots two snapshots
> > every 2 hours under heavy file system load. We got the following oops:
> > Unable to handle kernel NULL pointer dereference at virtual address
> > 00000000
> > 802895f5
> > 11: 89 48 04 mov %ecx,0x4(%eax)
> > 10 warnings issued. Results may not be reliable.
> > This was run on a 2.4.21 system using LVM 1.0.7. The system has 2GB of
> > memory and is configured with HIGHME64G. We are running the latest
> > 2.4.21 XFS and are using xfs_freeze to quiesce the file system. We are
> > not using the VFS_LOCK patch.
> > Anyone have any ideas what may be causing this?
> VM problems ? (we had some reports ITR)
> Do you have a chance to retest without HIGHMEM to see if it still fails ?
I looked through mailing list archives about this. Most the of himem
problems resulted in vmmalloc.c calls in the oops. I'll try it again
without himem to see if this helps.
> > Thanks,
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