[Linux-cluster] Unable to obtain lock

[Lon Hohberger]

On Fri, 2007-01-26 at 09:19 +0100, Marc Grimme wrote:
> Hello,
> yesterday we saw a clusterfreeze (which seems to come from the rgmanager) with 
> RHEL4/U4 GFS installed (see logs) consisting of 6 nodes x86_64 Architecture.
> After fencing one node the cluster came back to live.
> Any idea what could have happend? 

Check 'dmesg' and 'cman_tool status'.  Also look at /proc/slabinfo,
specifically 'dlm_lkb' bits.  There's a chance that you hit a bug that's
already fixed. :)

> And why didn't the cluster "heal" itself?

Need above information (and possibly more) to answer this.

-- Lon