kerb mount error RPC: AUTH_GSS upcall timed out. Please check user daemon is running

[Kevin Coffman]

On 7/29/07, samit pal <samit04 at yahoo.com> wrote:
> Hi All,
>
> I'am using ubuntu server which has linux 2.6.18-5
> kernel. I run a web server on it mounting data through
> nfs (v3) from netapp. We do krb5 mounts. Whenever i
> try to put it on production, i start seeing  these
> errors ("RPC: AUTH_GSS upcall timed out. Please check
> user daemon is running"). Then kerberos mounts start
> failing. The userland process is running fine. Basic
> troubleshooting (like stop/start rpc.gssd etc) has
> failed to yield any result. Anybody has seen such  a
> thing before ?
>
> Thanks
> samit

I assume you are doing these mounts via automount?  How often are you
mounting/unmounting?  When the mounts start failing, what kind of
error messages do you see?