From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757565AbZEMAF7 (ORCPT ); Tue, 12 May 2009 20:05:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752439AbZEMAFt (ORCPT ); Tue, 12 May 2009 20:05:49 -0400 Received: from fmailhost06.isp.att.net ([204.127.217.106]:34720 "EHLO fmailhost06.isp.att.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751980AbZEMAFs (ORCPT ); Tue, 12 May 2009 20:05:48 -0400 X-Originating-IP: [74.251.46.63] Date: Tue, 12 May 2009 19:05:46 -0500 From: Jay Cliburn To: Frank Filz Cc: Grant Coady , linux-kernel , neilb@suse.de, bfields@fieldses.org, linux-nfs@vger.kernel.org Subject: Re: NFS regression? Odd delays and lockups accessing an NFS export. Message-ID: <20090512190546.5e8a7faf@osprey.hogchain.net> In-Reply-To: <1242160078.2404.6.camel@dyn9047022153> References: <20080818185048.GO20684@miggy.org> <48A9CF89.9090304@bellsouth.net> <1242160078.2404.6.camel@dyn9047022153> X-Mailer: Claws Mail 3.7.0 (GTK+ 2.12.12; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 12 May 2009 13:27:58 -0700 Frank Filz wrote: > On Mon, 2008-08-18 at 14:37 -0500, J. K. Cliburn wrote: > > Athanasius wrote: > > > On Mon, Aug 18, 2008 at 12:02:20PM +1000, Grant Coady wrote: > > >> I've been using NFS here for years, lately there's something odd going on > > >> since about a month or so. Previously reported last month: > > >> http://www.gossamer-threads.com/lists/linux/kernel/951419?page=last [...] > > I see you're running the atl1 driver on your client. I'm chasing an > > intermittent bug in that driver that seems to be affected by certain > > offload parameters. Try disabling TSO and see if things improve. > > Was this ever resolved? We're seeing a similar hangup in a 2.6.27 > kernel. The TSO problem in the atl1 driver was never resolved, and TSO was turned off by default with commit 82c26a9d117f0178b8c1b33429014b6d99c470f6 in the 2.6.27 cycle. It was also added to the -stable tree at 2.6.26.4. http://lkml.org/lkml/2008/9/3/251 Jay