[Ocfs2-users] ocfs2 crash with bugs reports (dlmmaster.c)

[Sunil Mushran]

Thanks for the bug report. Please can you file a bz and attach
the all the message files. Yes the problem started with the hb
timeout in esiprap01. The problem spread to other nodes possibly
because of a race in migration. A bz will help us track the issue
more easily.

On 02/28/2011 01:46 AM, Piotr Teodorowski wrote:
> Hi,
>
> After problem described in http://oss.oracle.com/pipermail/ocfs2-users/2010-
> December/004854.html we've upgraded kernels and ocfs2-tools on every node.
>
> The present versions are:
> kernel 2.6.32-bpo.5-amd64 (from debian lenny-backports)
> ocfs2-tolls 1.4.4-3 (from debian squeeze)
>
> We didn't noticed any problems in logs untill last friday, when the whole
> ocfs2 cluster crashed.
>
> We know that it started with some problems on node 7 (esiprap01). It reported
> o2hb_write_timeout error and it rebooted automatically.
> Could you please explain what have happend with other nodes?
> Some of them reported bug:
> kernel BUG at
> /tmp/buildd/linux-2.6-2.6.32/debian/build/source_amd64_none/fs/ocfs2/dlm/dlmmaster.c:241!
> one of them (es1prap03 - node 4) reported:
> kernel BUG at
> /tmp/buildd/linux-2.6-2.6.32/debian/build/source_amd64_none/fs/ocfs2/dlm/dlmmaster.c:3260!
>
> We've had a problem to start the claster again. While one node was starting
> the other crashed (logged some stack strace - see attachments, and rebooted).
> The only way to start the claster was stop almost all nodes and start them one
> by one.
>
> We didn't find what caused problem with the first node (node 7), we don't
> expect tha we will find it out. Propably it wasn't hardware problem. The
> sotrage was responsible, we don't have any errors in storage event log.
> The question is why the other nodes crashed.
>
> The configuration is the same as it was in december (cluster.conf).
>
> Regards,
> Piotr Teodorowski
>
>
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