From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750861AbWIXQul (ORCPT ); Sun, 24 Sep 2006 12:50:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750987AbWIXQul (ORCPT ); Sun, 24 Sep 2006 12:50:41 -0400 Received: from smtp.osdl.org ([65.172.181.4]:3238 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1750861AbWIXQuk (ORCPT ); Sun, 24 Sep 2006 12:50:40 -0400 Date: Sun, 24 Sep 2006 09:50:29 -0700 From: Andrew Morton To: Christian Weiske Cc: linux-kernel@vger.kernel.org, reiserfs-dev@namesys.com, Ingo Molnar , Nick Piggin Subject: Re: 2.6.18 BUG: unable to handle kernel NULL pointer dereference at virtual address 000,0000a Message-Id: <20060924095029.0262a2c8.akpm@osdl.org> In-Reply-To: <451677FE.2070409@cweiske.de> References: <45155915.7080107@cweiske.de> <20060923134244.e7b73826.akpm@osdl.org> <451677FE.2070409@cweiske.de> X-Mailer: Sylpheed version 2.2.7 (GTK+ 2.8.17; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 24 Sep 2006 14:20:14 +0200 Christian Weiske wrote: > > It would be interesting to find out if enabling CONFIG_4KSTACKS makes this > > go away (although I'm not sure why). > So, here are the results from the 4K runs: > > Beside one Oops message, I got a "kernel BUG at mm/slab.c:2747!" in log > #1. Call traces as usual. > > Further, logs #2 and #3 show funny things; the thing just rebooted. Log > #2 has some oversized ethernet frames before the reboot. I assume that you have confirmed that the machine doesn't have hardware problems? Does it run some earlier kernel OK? And how long does it take to crash? Thanks.