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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

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I can tell you that they are directly related. Once you resolve the issue with lockd / rpc.lockd, your Subversion lock issues will go away.

Can you verify that lockd / rpc.lockd started correctly on 192.168.0.1? From your client, can you do 'rpcinfo -u 192.168.0.1 100021' ?

This thread has some useful information on lockd issues

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# rpcinfo -u 192.168.0.1 100021 give this output: rpcinfo: RPC: Timed out program 100021 version 0 is not available That means it's not running? How do I restart it? – Rory Sep 2 '09 at 17:07
Is there anything in dmesg on 192.168.0.1 re: lockd? ie, 'lockd: new process, skipping host shutdown' or 'lockd_up: makesock failed, error=' Also, can you check /proc/sys/sunrpc/rpc_lockd and see what value that is? – Tel Janin Sep 2 '09 at 17:19
restarting the nfs server fixed it – Rory Sep 3 '09 at 10:13
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Chances are that your NFS server is not running the rpc daemon. Try mounting your nfs with the "-o nolock" option. If that gets rid of your error messages, you have your reason. If there is only one client mounting that NFS share at a time, it should be safe enough to use the nolock option. This emulates the older NFS method of maintaining local locks only instead of remote locks.

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restarting the NFS server solved it – Rory Sep 3 '09 at 10:10
was the rpc process killed? – sybreon Sep 3 '09 at 11:54
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