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From: Lucas Wang <lwang@us.toyota-itc.com>
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Date: Tue, 24 Aug 2010 11:36:27 -0700
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Subject: nfs server /home not responding
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Hi experts,

We use NFS to store /home directory for users in our lab.
However, we occasionally get blocked from logging in because=20
the automount daemon on a NFS client machine hangs. When
that happens, we get this error message on the NFS client machine
called "bucks" in its system logs:
Aug 24 10:53:40 bucks kernel: nfs server pid670@bucks:/home: not =
responding

pid670 is the amd process.

Our NFS server(raptors) has the following configuration:
FreeBSD raptors.cs.ucla.edu 7.3-PRERELEASE FreeBSD 7.3-PRERELEASE #0: =
Tue Feb  9 12:59:50 PST 2010     =
root@raptors.cs.ucla.edu:/usr/obj/usr/src/sys/RAPTORS  amd64

And the client machine is configured as:
FreeBSD bucks.cs.ucla.edu 7.3-PRERELEASE FreeBSD 7.3-PRERELEASE #0: Tue =
Feb  9 20:47:50 UTC 2010     =
root@bucks.cs.ucla.edu:/usr/obj/usr/src/sys/BUCKS  amd64

Another thing I want to add is that several other NFS client machines
also hang from time to time. But they don't usually hang at the same =
time.
Even though rebooting can fix the problem once, we don't want it keep =
hurting us.

So any insights or suggestions will be greatly appreciated. Thanks a =
lot.

Regards,
- Lucas=