From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754190Ab1AaKUn (ORCPT ); Mon, 31 Jan 2011 05:20:43 -0500 Received: from mailout06.t-online.de ([194.25.134.19]:53225 "EHLO mailout06.t-online.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752682Ab1AaKUl (ORCPT ); Mon, 31 Jan 2011 05:20:41 -0500 Message-ID: <4D468CF0.9040103@t-online.de> Date: Mon, 31 Jan 2011 11:20:32 +0100 From: =?UTF-8?B?UmljaGFyZCBTY2jDvHR6?= User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101230 Lanikai/3.1.7 MIME-Version: 1.0 To: "Rafael J. Wysocki" CC: =?UTF-8?B?T3phbiDDh2HEn2xheWFu?= , Lionel Debroux , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org, colin.king@canonical.com Subject: Re: Common boot/shutdown issues with the latest 2.6.37 (Mostly Asus laptops) References: <556624.21214.qm@web28409.mail.ukl.yahoo.com> <201101302348.40509.rjw@sisk.pl> <4D467882.9060304@pardus.org.tr> <201101311050.49722.rjw@sisk.pl> In-Reply-To: <201101311050.49722.rjw@sisk.pl> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-ID: ESd+--ZdQhQiv+9aDJDlvwpe6dbCOwjLtPlCTpBVib7P1IWx0-diL1yxOKolcD4ZGP X-TOI-MSGID: 91329112-41de-47a3-998e-75b2e885447f Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> I'll compile a kernel with CONFIG_NO_HZ to see what happens but how do I >> disable cpuidle during boot? I've checked the kernel-parameters.txt but >> there's no cpuidle related boot parameter there. > > Booting with intel_idle.max_cstate=0 should do the trick. intel_idle.max_cstate=0 causes a fallback to the acpi_idle driver. So it does not disable the C-states directly. -- Regards, Richard Schütz