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Date: Tue, 20 Jun 2006 15:19:53 +0100
From: Brian Candler <B.Candler@pobox.com>
To: David O'Brien <obrien@freebsd.org>
Message-ID: <20060620141953.GB5731@uk.tiscali.com>
References: <20060620034229.GA48515@dragon.NUXI.org>
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Cc: freebsd-current@freebsd.org
Subject: Re: Often experiencing nfs server foo:/bar: not responding
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On Mon, Jun 19, 2006 at 08:42:29PM -0700, David O'Brien wrote:
> I am getting these errors all the time now (now being -CURRENT newer than
> Dec'05-Jan'06 time frame).  Are there some known issues in UDP or NFS
> serving since then?  This is on a virtually zero loaded 100Mbit network.
> Both the NFS server and client are FreeBSD-CURRENT systems.
> 
> I can trivially trigger this on all my FreeBSD-CURRENT NFS clients,
> simply by exiting Vim.  Did something change sometime in 2006 that would
> affect the default NFS mounts?

# ping -c100 -s1472 your.nfs.server

Run this when the machine is idle; and run it while you are exercising the
NFS server. Do you see any packet loss?