Date: Wed, 7 May 1997 19:08:48 -0400 (EDT) From: Brian Tao <taob@nbc.netcom.ca> To: FREEBSD-STABLE <freebsd-stable@freebsd.org>, FREEBSD-HACKERS <freebsd-hackers@freebsd.org> Subject: NFS service mysteriously stopping on 2.2-RELENG? Message-ID: <Pine.GSO.3.95.970507183534.10469I-100000@tor-adm1.nbc.netcom.ca>
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The 2.2-970420-RELENG NFS server I put together for a client is
humming along quite nicely, now that I've done fiddling with it.
However, there is an intermittent problem with the three BSD/OS
clients attached to it. One two occasions in the past week, all three
clients will "lose" the NFS server.
One client is running BSD/OS 2.1 with NFSv2 UDP mounts, and the
other two are BSD/OS 3.0 with NFSv3 TCP mounts. In addition to the
"nfs server not responding" syslog messages, the TCP clients
occasionally log this:
May 7 04:14:26 shell1 kernel: short receive (0/4) from nfs server nfs:/user/.4
May 7 05:38:45 shell1 kernel: short receive (0/4) from nfs server nfs:/user/.2
May 7 05:38:45 shell1 kernel: short receive (0/4) from nfs server nfs:/user/.3
May 7 05:38:45 shell1 kernel: short receive (0/4) from nfs server nfs:/user/.1
May 7 17:48:24 shell1 kernel: short receive (0/4) from nfs server nfs:/user/.1
May 7 17:48:24 shell1 kernel: short receive (0/4) from nfs server nfs:/user/.2
May 7 17:48:24 shell1 kernel: short receive (0/4) from nfs server nfs:/user/.3
May 7 17:48:24 shell1 kernel: short receive (0/4) from nfs server nfs:/user/.4
I haven't seen this reported on the BSD/OS 2.1 UDP client yet.
Sending a SIGKILL to the nfsd's on the FreeBSD server and restarting
them with "nfsd -t -u 8" clears things right up. Unfortunately, I
don't have any more information than this at the time, but there is a
monitor script taking regular snapshots of the process table, nfsstat
and netstat now.
--
Brian Tao (BT300, taob@netcom.ca)
"Though this be madness, yet there is method in't"
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