[Ocfs2-users] kernel BUG at fs/ocfs2/dlm/dlmthread.c:266

[Sunil Mushran]

<http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git;a=blob;f=fs/ocfs2/dlm/dlmthread.c;h=4060bb328bc8a08c22bbd77c59835d757ebdcda5;hb=refs/tags/v2.6.26.2#l265>265 
                 if (dlm_purge_lockres(dlm, lockres))
266                         BUG();

Known issue.

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7beaf243787f85a2ef9213ccf13ab4a243283fde

However, I don't know whether we can apply it as is on 2.6.26. That's
an old kernel and may require some other patches too.

Fixed in 2.6.36. Backported to 2.6.32, 2.6.34 and 2.6.35.

On 12/08/2010 03:02 AM, Piotr Teodorowski wrote:
> Hi.
>
> We've got yesterday a bug in OCFS2 (see subject).  It freezed the node
> es1prap02 and caused reboot of some (not all) of other nodes belonging to the
> same  ocfs2 cluster. Could you, please, let us know:
>
> * is the above bug known (or maybe alreadey fixed)?
> * is it possible to find out why three other nodes rebooted? It seems, that it
> can be another bug near 'quorum test' in our OCFS2 version.  Am I right?
>
>
> our configuration:
> O2CB_HEARTBEAT_THRESHOLD=31
> O2CB_IDLE_TIMEOUT_MS=30000
> O2CB_KEEPALIVE_DELAY_MS=2000
> O2CB_RECONNECT_DELAY_MS=2000
>
> dist debian lenny
> ocfs2-tools 1.4.1-1
> kernel 2.6.26-2-amd64
>
> modinfo ocfs2
> filename:       /lib/modules/2.6.26-2-amd64/kernel/fs/ocfs2/ocfs2.ko
> license:        GPL
> author:         Oracle
> version:        1.5.0
> description:    OCFS2 1.5.0
> srcversion:     C692B48692BFC8597E4D7A7
> depends:        jbd,ocfs2_stackglue,ocfs2_nodemanager
> vermagic:       2.6.26-2-amd64 SMP mod_unload modversions
>
>
> Logs and cluseter configuration in atachment.
>
> Thanks
>
> Regards,
> Piotr Teodorowski
>
>
> _______________________________________________
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> Ocfs2-users at oss.oracle.com
> http://oss.oracle.com/mailman/listinfo/ocfs2-users

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