Re: [Linux-cluster] GFS2 traceback related to DLM

[David Teigland <teigland redhat com>]

On Thu, Mar 08, 2007 at 11:53:40AM -0800, Sridhar Ramaswamy (srramasw) wrote:
> I'm using,
> 
> RHEL4 distro
> Linux kernel 2.6.20.1 (from kernel.org)
> cluster-2.00.00 (from tarball)
> udev-094
> openais-0.80.2
> 
> Everything seems to be working fine. But when I mounted GFS2 on the 2nd
> node on top of gnbd device, I got these dlm related tracebacks. Plus
> dlm_recvd and dlm_sendd process are spinning cpu on both the boxes. Note
> the mount itself succeeded and I can use the filesystem from both the
> nodes. 
> 
> I know GFS2 is new, but anyone solution to this problem?

Yes, get the latest dlm source (and gfs2 while you're at it) from a
2.6.21-rc kernel.  I usually do something like this as a shortcut:

  cp linux-2.6.21-rc/fs/dlm/* linux-2.6.20/fs/dlm/
  cp linux-2.6.21-rc/fs/gfs2/* linux-2.6.20/fs/gfs2/
  cp linux-2.6.21-rc/fs/gfs2/locking/dlm/* linux-2.6.20/fs/gfs2/locking/dlm/

No guarantees, but it often works and saves a bit of effort.
Dave