On Fri, 10 Apr 2009, Steven J. Yellin wrote:

>    After what seemed like good ideas for diagnosing the failure of two SL5.1 
> systems to export filesystems, I was still unable to correct the problem, 
> even by restarting nfs and related services.  Suggestions stopped coming in, 
> and local users got impatient for the problem to be corrected, even if it 
> meant interrupting their work. So I rebooted the machines, and that seemed to 
> fix the problem.  But the refusal to export may well recur -- it has 
> happened before.  Ideas are still welcome on how to diagnose or correct the 
> problem in the future without rebooting.

I had similar problems which seemed to be related to
https://bugzilla.redhat.com/show_bug.cgi?id=441983

However I set some lockd ports in /etc/sysconfig/nfs
so your problem may be different.

-- 
Dr. Andrew C. Aitchison		Computer Officer, DPMMS, Cambridge
[log in to unmask]	http://www.dpmms.cam.ac.uk/~werdna