From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: Re: Network buffer hang was Re: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata Date: Thu, 11 Sep 2003 18:46:24 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: <3F612570.1010303@candelatech.com> References: <0a5801c37821$54eb8180$890010ac@edumazet> <20030911051121.GA7751@colin2.muc.de> <0a7701c37829$c4bdef40$890010ac@edumazet> <20030911120956.GB7751@colin2.muc.de> <0b2901c37867$1db399a0$890010ac@edumazet> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: "Nakajima, Jun" , Andi Kleen , linux-kernel@vger.kernel.org, netdev@oss.sgi.com Return-path: To: dada1 In-Reply-To: <0b2901c37867$1db399a0$890010ac@edumazet> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.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