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From: Scott Serr <scott-ZQqfhXz8jV/QT0dZR+AlfA@public.gmane.org>
To: linux-nfs@vger.kernel.org
Subject: newer Linux nfs client freeze under load to OpenSolaris server
Date: Thu, 15 Jul 2010 10:44:36 -0600 (MDT)	[thread overview]
Message-ID: <20031040.12221279212276848.JavaMail.root@mail> (raw)
In-Reply-To: <20664671.12201279211977122.JavaMail.root@mail>

My Ubuntu 10.04 workstation automounts my OpenSolaris 2008.11 server.  This works and is stable for "light use."  If I hit it hard though with large "cp -a" reads or rsync/unison, then Linux locks up.  The system is non-responsive, the activity light on my switch shows very active until I force the power off on the box.  The activity light to NFS Server is calm during the Linux NFS Client activity.

I believe this happened when I ran Ubuntu 9.04.  It does not happen on 2 other boxes: Ubuntu 8.04 and Gentoo ~2009.  These other boxes are on the same switch 1Gb as the NFS Server, the problemed 10.04 workstation has 2 1Gb switches between.

I've tried nfs mount options vers=3 and udp and tcp, none seem to solve the problem.

I put another 100M switch between my 2 1Gb switches, this seems to work around the problem - no crashing.

Ideas?  Seems harsh that Linux would freeze.
(I'll try with no switches next.)

Thanks for any ideas,
Scott

       reply	other threads:[~2010-07-15 16:54 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20664671.12201279211977122.JavaMail.root@mail>
2010-07-15 16:44 ` Scott Serr [this message]
2010-07-15 16:58   ` newer Linux nfs client freeze under load to OpenSolaris server Trond Myklebust

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