Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752638AbYLCM0n (ORCPT ); Wed, 3 Dec 2008 07:26:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752657AbYLCM0d (ORCPT ); Wed, 3 Dec 2008 07:26:33 -0500 Received: from mercuryimc.plus.com ([80.229.200.144]:38813 "EHLO mimc.mimc.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752614AbYLCM0c (ORCPT ); Wed, 3 Dec 2008 07:26:32 -0500 Message-ID: <49367AFD.8030600@mimc.co.uk> Date: Wed, 03 Dec 2008 12:26:37 +0000 From: Mark Jackson User-Agent: Thunderbird 2.0.0.18 (X11/20081125) MIME-Version: 1.0 To: Kay Sievers CC: linux-kernel@vger.kernel.org, Haavard Skinnemoen , Andrew Morton , Peter Zijlstra , David Woodhouse Subject: Re: Badness at mm/backing-dev.c:179 References: <49367691.5060007@mimc.co.uk> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1208 Lines: 32 Kay Sievers wrote: > On Wed, Dec 3, 2008 at 13:07, Mark Jackson wrote: >> The following commit causes a "Badness at mm/backing-dev.c:179":- >> >> f1d0b063d993527754f062c589b73f125024d216 is first bad commit >> commit f1d0b063d993527754f062c589b73f125024d216 >> Author: Kay Sievers >> Date: Tue Dec 2 10:31:50 2008 -0800 >> >> bdi: register sysfs bdi device only once per queue > >> Below is the extract from dmesg:- >> >> ------------[ cut here ]------------ >> Badness at mm/backing-dev.c:179 > > That's a known issue, and will not cause any harm besides printing > this warning. Andrew added the warning to catch drivers who use one > single request queue for multiple devices. Currently known are mtd and > floppy (triggers only if you have more than one device per driver). > The drivers need to be changed to use a separate queue per device, to > get rid of this warning. Okay ... thanks for the info. Mark -- 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/