From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754347AbZBCEFd (ORCPT ); Mon, 2 Feb 2009 23:05:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753218AbZBCEFU (ORCPT ); Mon, 2 Feb 2009 23:05:20 -0500 Received: from avexch1.qlogic.com ([198.70.193.115]:45835 "EHLO avexch1.qlogic.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751515AbZBCEFS (ORCPT ); Mon, 2 Feb 2009 23:05:18 -0500 Date: Mon, 2 Feb 2009 20:05:16 -0800 From: Andrew Vasquez To: Andrew Morton Cc: "matthew@wil.cx" , "gregkh@suse.de" , "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Seokmann Ju Subject: Re: slab error in verify_redzone_free() badness... Message-ID: <20090203040516.GA11835@plap4-2.local> References: <20090129225532.GA37589@plap4-2.local> <20090202151852.de39952b.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090202151852.de39952b.akpm@linux-foundation.org> Organization: QLogic Corporation User-Agent: Mutt/1.5.18 (2008-05-17) X-OriginalArrivalTime: 03 Feb 2009 04:04:16.0044 (UTC) FILETIME=[7AF7D6C0:01C985B4] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 02 Feb 2009, Andrew Morton wrote: > I'd be suspecting a bug in the caller. > > Try setting CONFIG_DEBUG_PAGEALLOC, and use slab.c (not slub). slab > will perform page unmapping for those 2k-sized slabs. I don't know > whether slub does that. > > All being well, you'll get a nice oops at the site of the improper > reference. Thanks for the tip... Yeah, we're triaging this further, as it seems to be pointing to something in the recent 'refactoring/multi-q' code in qla2xxx... -- av