From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760248AbYELGxA (ORCPT ); Mon, 12 May 2008 02:53:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756646AbYELGwk (ORCPT ); Mon, 12 May 2008 02:52:40 -0400 Received: from 2605ds1-ynoe.1.fullrate.dk ([90.184.12.24]:49526 "EHLO shrek.krogh.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756238AbYELGwj (ORCPT ); Mon, 12 May 2008 02:52:39 -0400 Message-ID: <4827E930.3000008@krogh.cc> Date: Mon, 12 May 2008 08:52:32 +0200 From: Jesper Krogh User-Agent: Thunderbird 2.0.0.14 (X11/20080502) MIME-Version: 1.0 To: David Miller CC: yhlu.kernel@gmail.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: NIU - Sun Neptune 10g - Transmit timed out reset (2.6.24) References: <20080507.141521.193714938.davem@davemloft.net> <482498D5.9060008@krogh.cc> <48258074.7060306@krogh.cc> <20080510.213431.193696750.davem@davemloft.net> In-Reply-To: <20080510.213431.193696750.davem@davemloft.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org David Miller wrote: > From: Jesper Krogh > Date: Sat, 10 May 2008 13:01:08 +0200 > >> Any good suggestions about the "Transmit timed out" messages. It >> currently leads to a system that "doesnt die" but doesnt respond within >> 15 minutes of load of the network adapter. > > It's likely some bug in the driver that hangs the card for whatever > reason, which we'll need to work out. Ok. I have been testing a bit more. It generally works fine, It seems the "transmit timed out" thing was provoked by dd in the tests, because it was creating a lot of small requests. (default bs=512).(over NFS). When the blocksize went up, the problem dissapered. (and the numer of context-switches went down). When the blocksize went up, the performance likewise raised to 615MB/s. I haven't been able to get pass that number. This is where one of the cpu's are settling at 100% load. Jesper -- Jesper