nfs4 state id errors

Hello,

We have a open support case at Netapp for this but I hope someone recognizes these errors and can give us a clue how to solve this.

We have a Netapp 3170 NFS4 server with krb5 security. Our Suse 11.2 clients give these errors.

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RPC call returned error 13
NFS: v4 server returned a bad sequence-id error on an unconfirmed sequence ffff88020d80de20!

nfs4_reclaim_locks: unhandled error -10026. Zeroing state
nfs4_reclaim_open_state: unhandled error -10026. Zeroing state
NFS: v4 server srvxxx returned a bad sequence-id error!
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After the last line (zeroing state) the client goes into a hang.

Client versions :

nfs-client-1.2.3-18.23.1
krb5-client-1.6.3-133.48.48.1

Kernel : 3.0.38-0.5-default

I have reported this earlier on this list, but i hope someone reads it who recognises it. Will save us a lot of headaches....

Greetings, Richard Smits
ICT, Technical University Delft.
The Netherlands
[email protected]