From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261639AbTILBqr (ORCPT ); Thu, 11 Sep 2003 21:46:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261648AbTILBqq (ORCPT ); Thu, 11 Sep 2003 21:46:46 -0400 Received: from evrtwa1-ar2-4-35-048-180.evrtwa1.dsl-verizon.net ([4.35.48.180]:55181 "EHLO grok.yi.org") by vger.kernel.org with ESMTP id S261653AbTILBqp (ORCPT ); Thu, 11 Sep 2003 21:46:45 -0400 Message-ID: <3F612570.1010303@candelatech.com> Date: Thu, 11 Sep 2003 18:46:24 -0700 From: Ben Greear Organization: Candela Technologies User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5b) Gecko/20030827 X-Accept-Language: en-us, en MIME-Version: 1.0 To: dada1 CC: "Nakajima, Jun" , Andi Kleen , linux-kernel@vger.kernel.org, netdev@oss.sgi.com Subject: Re: Network buffer hang was Re: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata References: <0a5801c37821$54eb8180$890010ac@edumazet> <20030911051121.GA7751@colin2.muc.de> <0a7701c37829$c4bdef40$890010ac@edumazet> <20030911120956.GB7751@colin2.muc.de> <0b2901c37867$1db399a0$890010ac@edumazet> In-Reply-To: <0b2901c37867$1db399a0$890010ac@edumazet> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org dada1 wrote: >>>This is not a kernel crash. But total freeze as all memory is used by >>>network buffers, in no more than 10 seconds. I believe I have hit this as well, by starting 500kbps streams on 500 vlans at once. My machine locks so hard that I have not been able to get any info out of it...but the realtek driver shows and error message about not being able to allocate any buffers if I ping it.... I was using kernel 2.4.21 or so, and had tcp buffers turned up quite high. I have seen this on P-IV and AMD (single Athlon) systems, as well as a VIA C3. -- Ben Greear Candela Technologies Inc http://www.candelatech.com