NFSV4 + Kerberos: server not responding

[J. Bruce Fields]

On Wed, Aug 29, 2007 at 06:05:16PM +0200, Gerald Macinenti wrote:
> I've got two problems with my NFS4 server:
> - sometimes exports can't be mounted from any clients
> - sometimes some clients can mount and see the exported files tree but 
> cannot open files
>
> In the first case, restarting NFS on the server solves the problem, but in 
> the second one, the only solution I found is to restart the client host.
>
> The interesting logs on the server are:
>
> Aug 29 17:50:09 server_name kernel: nfs4_cb: server /server_ip AUTH_GSS 1 
> not responding, timed out
> Aug 29 17:51:17 server_name kernel: nfs4_cb: server /server_ip AUTH_GSS 
> 1� not responding, timed out
> Aug 29 17:52:24 server_name kernel: nfs4_cb: server /server_ip AUTH_GSS 
> 1*v*+w,�.w)�'{%})y(#|""w&�-{'�%y&$|
�||{~|
|
|
}
z 
> $z"� {"~ u-|5t4-|!�
x$}.u9�+x)�+y!�$|#~"{ �z"!z � 
> {
~
{
}| y!}
|
}"z!%w*}*w,~&{} x%}&w)|-z(�"z
{
}$ not responding, 
> timed out

There have been fixes since 2.6.20 then which should have addressed the
problem of garbage in the logs.  Could you retest with a more recent
kernel? (2.6.22 or later?)

The other problems I'm not sure of the cause.

--b.