From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264156AbTIKChs (ORCPT ); Wed, 10 Sep 2003 22:37:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264231AbTIKChs (ORCPT ); Wed, 10 Sep 2003 22:37:48 -0400 Received: from pat.uio.no ([129.240.130.16]:51898 "EHLO pat.uio.no") by vger.kernel.org with ESMTP id S264156AbTIKChq (ORCPT ); Wed, 10 Sep 2003 22:37:46 -0400 To: Marco Bertoncin - Sun Microsystems UK - Platform OS Development Engineer Cc: linux-kernel@vger.kernel.org Subject: Re: NFS/MOUNT/sunrpc problem? References: <200309101437.h8AEbV108262@brk-mail1.uk.sun.com> From: Trond Myklebust Date: 10 Sep 2003 22:37:43 -0400 In-Reply-To: <200309101437.h8AEbV108262@brk-mail1.uk.sun.com> Message-ID: User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Honest Recruiter) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-MailScanner-Information: This message has been scanned for viruses/spam. Contact postmaster@uio.no if you have questions about this scanning. X-UiO-MailScanner: No virus found Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >>>>> " " == Marco Bertoncin <- Sun Microsystems UK - Platform OS Development Engineer > writes: > switch. How to reproduce > - During install a MOUNT (V2) request is sent to the install > server > - the ACK is dropped > Symptom > - the blade, after 3 seconds, starts a storm of retransmit > (MOUNT reqs) that > won't stop, unless an ACK (one of the several ACKS sent for > each retransmitted requests) has the chance to get > through. This is sometimes after a few hundreds packets, > sometimes after a lot more, causing an apparent hang of the > installation process, and what's even worse, bringing to a > grinding halt the server (bombarded by near 1Gbit/sec packets). Have you tried a more recent kernel? 2.4.18 was released more than one and a half years ago... Cheers, Trond