From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 2 Oct 2002 18:08:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 2 Oct 2002 18:08:51 -0400 Received: from e4.ny.us.ibm.com ([32.97.182.104]:36528 "EHLO e4.ny.us.ibm.com") by vger.kernel.org with ESMTP id ; Wed, 2 Oct 2002 18:08:49 -0400 Message-ID: <3D9B6F7E.1060004@us.ibm.com> Date: Wed, 02 Oct 2002 15:13:18 -0700 From: Dave Hansen User-Agent: Mozilla/5.0 (compatible; MSIE5.5; Windows 98; X-Accept-Language: en-us, en MIME-Version: 1.0 To: Benjamin LaHaise CC: linux-kernel@vger.kernel.org, "Martin J. Bligh" , linux-mm@kvack.org Subject: Re: [RFC][PATCH] 4KB stack + irq stack for x86 References: <3D9B62AC.30607@us.ibm.com> <20021002174320.J28857@redhat.com> 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 Benjamin LaHaise wrote: > On Wed, Oct 02, 2002 at 02:18:36PM -0700, Dave Hansen wrote: > >>I've resynced Ben's patch against 2.5.40. However, I'm getting some >>strange failures. The patch is good enough to pass LTP, but >>consistently freezes when I run tcpdump on it. > > Try running tcpdump with the stack checking patch applied. That should > give you a decent backtrace for the problem. My first suspicion was that it was just overflowing, but not getting the message out. I just realized that my latest testing (the last 24 hours) was on the original patch, not the updated one that you posted later, which included the stack checking. I'm sure that I was having the same problem with the overflow checking enabled and _not_ getting any errors from it, but I'll redo the testing for my sanity's sake. -- Dave Hansen haveblue@us.ibm.com