Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262161AbTKVKzm (ORCPT ); Sat, 22 Nov 2003 05:55:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262164AbTKVKzm (ORCPT ); Sat, 22 Nov 2003 05:55:42 -0500 Received: from dbl.q-ag.de ([80.146.160.66]:54912 "EHLO dbl.q-ag.de") by vger.kernel.org with ESMTP id S262161AbTKVKzl (ORCPT ); Sat, 22 Nov 2003 05:55:41 -0500 Message-ID: <3FBF409F.7070405@colorfullife.com> Date: Sat, 22 Nov 2003 11:55:27 +0100 From: Manfred Spraul User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4.1) Gecko/20031030 X-Accept-Language: en-us, en MIME-Version: 1.0 To: pinotj@club-internet.fr CC: torvalds@osdl.org, akpm@osdl.org, linux-kernel@vger.kernel.org Subject: Re: [Oops] i386 mm/slab.c (cache_flusharray) References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 953 Lines: 31 pinotj@club-internet.fr wrote: >c6fd7870: redzone 1: 0x170fc2a5, redzone 2: 0x160fc2a5. > Single bit error: redzone 2 must be 0x170fc2a5. >--- >System looks OK, I tried a second compilation just after and this time I got an oops: >--- >slab: double free detected in cache 'buffer_head', objp cc3f9798, objnr 26, slabp cc3f9000, s_mem cc3f9180 bufctl f7ffffff. > > Good. +#define BUFCTL_END 0xfeffFFFF +#define BUFCTL_FREE 0xf7ffFFFE +#define SLAB_LIMIT 0xf0ffFFFD f7ffffff is not a valid value, slab never writes that into a bufctl. Someone did a ++ or "|= 1", or a hw bug. I think the Athlon cpus have ECC for the L2 cache - could you check in the bios that ECC checking is enabled? -- Manfred - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/