Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756612AbXISU7l (ORCPT ); Wed, 19 Sep 2007 16:59:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751837AbXISU7e (ORCPT ); Wed, 19 Sep 2007 16:59:34 -0400 Received: from netops-testserver-3-out.sgi.com ([192.48.171.28]:52348 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751832AbXISU7d (ORCPT ); Wed, 19 Sep 2007 16:59:33 -0400 Date: Wed, 19 Sep 2007 13:59:32 -0700 (PDT) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: Alexey Dobriyan cc: Andrew Morton , gregkh@suse.de, linux-kernel@vger.kernel.org Subject: Re: 2.6.23-rc6-mm1: BUG kmalloc-16: Object padding overwritten (sysfs?) In-Reply-To: <20070919123954.fb552e80.akpm@linux-foundation.org> Message-ID: References: <20070919123907.GA15591@localhost.sw.ru> <20070919125918.GA6760@localhost.sw.ru> <20070919123954.fb552e80.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 726 Lines: 22 On Wed, 19 Sep 2007, Andrew Morton wrote: > > find /sys/slab | xargs cat Hmmm... This works fine here. Doing the cat may trigger slab validation and show objects corruptions that were heretofore unnoticed. Could you see if running slabinfo -v gives the same results? > So do you beleive the bug lies in the /sys/slab implementation? I would think that this is evidence of memory corruption occurring. The issues were detected while SLUB attempted to flush per cpu queues. - 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/