[SLUG] NFS help

[Danny Yee <danny@xxxxxxxxxxxxxxxxxxx>]

I seem to have locked up NFS on my server so badly I can't shut it down.

I've killed everything else (rpc.mountd, etc.), but the four nfsd
processes won't respond in any way:

root     24751  0.0  0.0     0    0 pts/0    DW   12:42   0:00 nfsd
root     24752  0.0  0.0     0    0 pts/0    DW   12:42   0:00 nfsd
root     24754  0.0  0.0     0    0 pts/0    DW   12:42   0:00 nfsd
root     24756  0.0  0.0     0    0 pts/0    DW   12:42   0:00 nfsd

I'm running nfs-utils-0.1.9.1-1 on Redhat Linux (half way between
6.1 and 6.2).  Any ideas about solutions to this less drastic than
rebooting the machine?

Danny.