NFS mounts hanging network

From: MJ Watson <mjwatson_at_snafu.livenet.net>
Date: Thu, 09 Jul 1998 14:39:04 -0400 (EDT)

Managers,

We were wondering if there are any new developments on the NFS
mounts problems listed in the archives. We've got a new 4100/
DU 4.0D/patchkit #1/Firmware 5.1 which is trying to mount a
subdirectory from a similarly configured 4000. It appears to
do the mount OK, but as soon as we try to do an 'ls' on the
mounted directory, our network freezes. It usually stays
hung until we do a umount -f (or the network folks pull our
FDDI link) or reboot the system.

The 4100 has both a FDDI and 10Mbs Ethernet running through
a switch. We've tried mounting the directory from the client
side with "-o nfsv2,soft,intr" and by the dbx patch to /vmunix
"patch do_client_readdirplus=0" and rebooting. Neither has
been any help.

So, we're guessing the NFS through the switch might be the
problem, and the network guys are off-site right now. One
question we haven't been able to figure out is how we check
to see (if it matters, that is) if our interfaces are set
to half-duplex or not. We've tried ifconfig, netstat and
pfstat, but don't see anything helpful or didn't get the
right syntax (unless SIMPLEX in ifconfig is useful?).

We're open to suggestions at this point.

Regards,
Michael
-- 
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Michael Watson, EMT-P		N6WAV          Virginia Beach, Virginia
N20300  1977 C177B _at_ KCPK/KECG                 mjwatson_at_livenet.net
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Received on Thu Jul 09 1998 - 20:15:44 NZST

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