NFS client issue

[Net Llama!]

On Fri, 26 Jan 2007, Jason Joines wrote:

>    I have a bunch of boxes backing themselves up to an NFS server.  One
> of them suddenly stopped working, it can no longer mount the NFS
> export.  Doesn't seem to be an issue with the server as all the other
> clients are still working just fine.
>
>    The failing client is an old SuSE 8.1 box with a 2.4.19 kernel and
> the server is OpenSuSE 10.0 with a 2.6.13 kernel.  The output of the
> failed backup script reports "mount: RPC: Port mapper failure - RPC:
> Timed out".  portmap is running on the client and I've restarted it but
> that didn't help.
>    The other clients are all SuSE with versions ranging from 8.0 to 10.0.
>
>    I tried to do the mount manually a few times ( same server but
> different exports and local mount points ) and each resulted in a hung
> mount process.  The int option was used each time but none of the mount
> processes can be killed even those with the soft option.  The mount
> called from the script does not result in a hang, it just fails.  Only
> the manual attempts hang and have now been hung for over 18 hours.
>
>    Using rpcinfo, the client can list the services registered with RPC
> on itself and on the server including portmapper, nfs, and mountd.  I'm
> using TCP.
>    During one of the mount attempts I logged all the network traffic
> between the client and the server.  The client contacted portmap on the
> server and got replies, it then contacted mountd on the server and got
> replies.  However, it never sent anything to nfs on the server.

What does this return from the broken system?
showmount -e $servername

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Lonni J Friedman                        netllama at linux-sxs.org
LlamaLand				http://netllama.linux-sxs.org