I'm seeing lots of messages in my
/var/log/messages file like this:
Sep 2 17:36:47 hostname kernel: lockd: couldn't create RPC handle for 192.168.0.1
This server is NFS mounting a few directories from 192.168.0.1.
I have no idea where to start diagnosing this, and I'm pretty sure it's related to this http://serverfault.com/questions/61594/what-does-no-locks-available-mean