From mboxrd@z Thu Jan 1 00:00:00 1970 From: Scott Serr Subject: newer Linux nfs client freeze under load to OpenSolaris server Date: Thu, 15 Jul 2010 10:44:36 -0600 (MDT) Message-ID: <20031040.12221279212276848.JavaMail.root@mail> References: <20664671.12201279211977122.JavaMail.root@mail> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 To: linux-nfs@vger.kernel.org Return-path: Received: from mail.geeksite.org ([63.227.241.157]:37157 "EHLO mail.geeksite.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933733Ab0GOQyu (ORCPT ); Thu, 15 Jul 2010 12:54:50 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.geeksite.org (Postfix) with ESMTP id 276D036026 for ; Thu, 15 Jul 2010 10:44:37 -0600 (MDT) Received: from mail.geeksite.org ([127.0.0.1]) by localhost (mail.geeksite.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id yZJ31fak0458 for ; Thu, 15 Jul 2010 10:44:36 -0600 (MDT) Received: from mail.geeksite.org (unknown [192.168.0.202]) by mail.geeksite.org (Postfix) with ESMTP id DF78B36022 for ; Thu, 15 Jul 2010 10:44:36 -0600 (MDT) In-Reply-To: <20664671.12201279211977122.JavaMail.root@mail> Sender: linux-nfs-owner@vger.kernel.org List-ID: 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