Description of problem:
When relocating an nfs service or restarting it in place during a write
transaction the mounted filesystem returns EACCES.

Version-Release number of selected component (if applicable):
rgmanager-1.9.34-1

How reproducible:
always

Steps to Reproduce:
1.Setup an nfs service
2.mount it on another RHEL4 client
3.Start an NFS write
4.Use clusvcadm -R or -r ...

Actual results:
The write operation breaks with Permission denied, any further access to the
mounted filesystem returns Permission denied.

Expected results:
Continuation of the write operation. Filsystem remains accessible 

Additional info:
o Restarting/relocating when NFS is not busy is successful.
o The network connection is GBit, the NFS protocol is 3, connection is via TCP
o slow writes are successful (in restarting/relocating)
o Relevant cluster.conf part:

    <service autostart="1" domain="nfs" name="homes-nfs">
      <ip ref="XXX.XXX.XXX.XXX"/>
      <clusterfs ref="data">
        <nfsexport name="home" path="/data/homes">
          <nfsclient ref="clients"/>
        </nfsexport>
      </clusterfs>
    </service>