Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759409AbYHVV5V (ORCPT ); Fri, 22 Aug 2008 17:57:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756610AbYHVV5D (ORCPT ); Fri, 22 Aug 2008 17:57:03 -0400 Received: from mail-out1.uio.no ([129.240.10.57]:43463 "EHLO mail-out1.uio.no" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752742AbYHVV5B (ORCPT ); Fri, 22 Aug 2008 17:57:01 -0400 Subject: Re: NFS regression? Odd delays and lockups accessing an NFS export. From: Trond Myklebust To: Ian Campbell Cc: John Ronciak , Grant Coady , linux-kernel@vger.kernel.org, neilb@suse.de, bfields@fieldses.org, linux-nfs@vger.kernel.org, Jeff Kirsher , Jesse Brandeburg , Bruce Allan , PJ Waskiewicz , John Ronciak , e1000-devel@lists.sourceforge.net In-Reply-To: <1219441041.27921.57.camel@localhost.localdomain> References: <1219087258.7192.19.camel@localhost> <1219400624.18774.67.camel@zakaz.uk.xensource.com> <1219428489.6919.21.camel@localhost> <1219428818.27921.43.camel@localhost.localdomain> <56a8daef0808221233h68853587n6015ca7d809b17e1@mail.gmail.com> <1219435207.27921.51.camel@localhost.localdomain> <1219440202.9097.14.camel@localhost> <1219441041.27921.57.camel@localhost.localdomain> Content-Type: text/plain Date: Fri, 22 Aug 2008 14:56:53 -0700 Message-Id: <1219442213.9097.25.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 Content-Transfer-Encoding: 7bit X-UiO-Spam-info: not spam, SpamAssassin (score=-5.0, required=5.0, autolearn=disabled, UIO_MAIL_IS_INTERNAL=-5, uiobl=NO, uiouri=NO) X-UiO-Scanned: 704FAF4792C973223B5499D268C874D19868F63B X-UiO-SPAM-Test: remote_host: 198.95.226.240 spam_score: -49 maxlevel 200 minaction 2 bait 0 mail/h: 2 total 6 max/h 2 blacklist 0 greylist 0 ratelimit 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 873 Lines: 25 On Fri, 2008-08-22 at 22:37 +0100, Ian Campbell wrote: > I can ssh to the server fine. The same server also serves my NFS home > directory to the box I'm writing this from and I've not seen any trouble > with this box at all, it's a 2.6.18-xen box. OK... Are you able to reproduce the problem reliably? If so, can you provide me with a binary tcpdump or wireshark dump? If using tcpdump, then please use something like tcpdump -w /tmp/dump.out -s 90000 host myserver.foo.bar and port 2049 Please also try to provide a netstat dump of the current TCP connections as soon as the hang occurs: netstat -t Cheers Trond -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/