Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758564Ab3CFPpT (ORCPT ); Wed, 6 Mar 2013 10:45:19 -0500 Received: from e9.ny.us.ibm.com ([32.97.182.139]:55945 "EHLO e9.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750915Ab3CFPpQ (ORCPT ); Wed, 6 Mar 2013 10:45:16 -0500 Message-ID: <51376453.3030308@linux.vnet.ibm.com> Date: Wed, 06 Mar 2013 07:44:19 -0800 From: Dave Hansen User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: Tetsuo Handa CC: bp@alien8.de, hpa@linux.intel.com, linux-kernel@vger.kernel.org Subject: Re: [3.9-rc1 x86] Bug in ioremap code? References: <201303060041.AIF15342.tJFOHLQFFOMVSO@I-love.SAKURA.ne.jp> <20130305180650.GD4914@pd.tnic> <201303060628.CBG00578.OJtMFFHLQVSFOO@I-love.SAKURA.ne.jp> <51367104.5050200@linux.vnet.ibm.com> <20130305224432.GD27022@pd.tnic> <201303062358.EFG90616.HLtSQFJFOMVOFO@I-love.SAKURA.ne.jp> In-Reply-To: <201303062358.EFG90616.HLtSQFJFOMVOFO@I-love.SAKURA.ne.jp> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13030615-7182-0000-0000-000005AA7006 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 998 Lines: 20 On 03/06/2013 06:58 AM, Tetsuo Handa wrote: > I don't know why but changing kernel config to CONFIG_ACPI=n > ( http://I-love.SAKURA.ne.jp/tmp/config-3.9-rc1-noacpi ) solves this bug. > Well, should I run bisection on ACPI code? The ACPI code definitely _triggers_ it. However, if you bisect, I bet you'll just bisect down to the new debugging check that you're hitting: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a25b9316841c5afa226f8f70a457861b35276a92 So, if you're able to bisect it, you'll need to apply that patch whenever you're at a bisect point _before_ it was applied. That might also mean doing some merging because I'm sure the code around there has changed. IOW, bisecting isn't going to be super-easy. -- 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/