Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751529Ab0AJCHg (ORCPT ); Sat, 9 Jan 2010 21:07:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751242Ab0AJCHf (ORCPT ); Sat, 9 Jan 2010 21:07:35 -0500 Received: from mail-iw0-f194.google.com ([209.85.223.194]:65139 "EHLO mail-iw0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751196Ab0AJCHe (ORCPT ); Sat, 9 Jan 2010 21:07:34 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type; b=YBwgLVr3f+CyuKdZRT3rX17bRGxkvBuHykBb0BYuyzi+iZVGkIUwGJ4dD+MrV8RrPP R8xg+0GeKZla1ngltP4oedRec+54b6Tz8/CDA99QJhzvczHun/1wPkdvgFo8/Dsw+I01 pXLLdTHIlocFpLCjdXAxLk6E3U2iPH1ZW5Pv0= MIME-Version: 1.0 In-Reply-To: <20100109164240.43b21247@infradead.org> References: <20100108171513.GB22713@ldl.fc.hp.com> <20100109134352.3dedd4ea@infradead.org> <20100109160836.26a344a9@infradead.org> <20100109164240.43b21247@infradead.org> From: Ray Lee Date: Sat, 9 Jan 2010 18:07:14 -0800 X-Google-Sender-Auth: 86f32908f35f37db Message-ID: <2c0942db1001091807k542b1052s96111775d6431bd0@mail.gmail.com> Subject: Re: High cpu temperature with 2.6.32, bisection shows commit 69d258 (fwd) To: Arjan van de Ven Cc: Dimitrios Apostolou , Alex Chiang , Len Brown , Bjorn Helgaas , Andrew Morton , Yinghai Lu , linux-kernel@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 748 Lines: 16 On Sat, Jan 9, 2010 at 4:42 PM, Arjan van de Ven wrote: > basically it appears that your machine, when the kernel asks for C2, > exits C2 immediately again. > > The old algorithm somehow caught this and stopped asking for C2 most of > the time; the new algorithm doesn't see any activity and asks for C2 > again. This change of behavior will certainly bite more users out there. Is there any way we can detect the systems that aren't honoring the C2 request and limit back to C1? -- 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/