Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759055AbXKNRh3 (ORCPT ); Wed, 14 Nov 2007 12:37:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752121AbXKNRhO (ORCPT ); Wed, 14 Nov 2007 12:37:14 -0500 Received: from waste.org ([66.93.16.53]:53968 "EHLO waste.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750971AbXKNRhN (ORCPT ); Wed, 14 Nov 2007 12:37:13 -0500 Date: Wed, 14 Nov 2007 11:36:12 -0600 From: Matt Mackall To: Ingo Molnar Cc: "Rafael J. Wysocki" , LKML , Andrew Morton , Linus Torvalds Subject: Re: [bug] SLOB crash, 2.6.24-rc2 Message-ID: <20071114173611.GR19691@waste.org> References: <200711112058.28043.rjw@sisk.pl> <20071114112001.GA13870@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071114112001.GA13870@elte.hu> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1084 Lines: 24 On Wed, Nov 14, 2007 at 12:20:01PM +0100, Ingo Molnar wrote: > > there's a new SLOB regression - the attached config crashes with: > > [ 61.245190] rc.sysinit used greatest stack depth: 1680 bytes left > [ 61.386859] list_add corruption. prev->next should be next (407d973c), but was 418cf818. (prev=41877098). > [ 61.396328] ------------[ cut here ]------------ > [ 61.400910] kernel BUG at lib/list_debug.c:33! > [ 61.405330] invalid opcode: 0000 [#1] DEBUG_PAGEALLOC > > looks like memory corruption of some sort and it's reproducible. Picking > CONFIG_SLUB makes the crash go away. Booting v2.6.23 with the same > .config works fine. Hmmm, the changes in SLOB since v2.6.23 are all trivial. I'll try to reproduce it with your config, but it doesn't seem promising. -- Mathematics is the supreme nostalgia of our time. - 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/