[linux-lvm] Oops when running snapshots
Heinz J . Mauelshagen
mauelshagen at sistina.com
Thu Jul 10 04:34:01 UTC 2003
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
<SNIP>
> 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 ?
>
> Thanks,
>
> Andrew
>
> --
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> Hewlett-Packard Company Email: andrew at fc.hp.com
>
>
>
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--
Regards,
Heinz -- The LVM Guy --
*** Software bugs are stupid.
Nevertheless it needs not so stupid people to solve them ***
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Heinz Mauelshagen Sistina Software Inc.
Senior Consultant/Developer Am Sonnenhang 11
56242 Marienrachdorf
Germany
Mauelshagen at Sistina.com +49 2626 141200
FAX 924446
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