Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751961AbWCBP6J (ORCPT ); Thu, 2 Mar 2006 10:58:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751038AbWCBP6I (ORCPT ); Thu, 2 Mar 2006 10:58:08 -0500 Received: from antispam.upcomillas.es ([130.206.70.245]:32209 "EHLO antispam.upcomillas.es") by vger.kernel.org with ESMTP id S1750729AbWCBP6H (ORCPT ); Thu, 2 Mar 2006 10:58:07 -0500 Date: Thu, 2 Mar 2006 16:58:50 +0100 From: Romano Giannetti To: Zwane Mwaikambo Cc: "Brown, Len" , Dave Jones , "Raj, Ashok" , Andi Kleen , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org Subject: Re: 2.6.16rc5 'found' an extra CPU. Message-ID: <20060302155850.GB10823@pern.dea.icai.upcomillas.es> Mail-Followup-To: Romano Giannetti , Zwane Mwaikambo , "Brown, Len" , Dave Jones , "Raj, Ashok" , Andi Kleen , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org References: <20060302093333.GB18448@pern.dea.icai.upcomillas.es> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2762 Lines: 42 On Thu, Mar 02, 2006 at 07:53:39AM -0800, Zwane Mwaikambo wrote: > On Thu, 2 Mar 2006, Romano Giannetti wrote: > > > On Thu, Mar 02, 2006 at 12:49:53AM -0500, Brown, Len wrote: > > > > > > I'm afraid that even after we get this stuff out of /proc > > > and into sysfs where it belongs, we'll have to leave /proc/acpi around > > > for a while b/c unfortunately people are under the impression > > > that the path names there actually mean something and > > > they can actually count on them -- which they can't. > > > > Is it possible to obtain the same control/information with sysfs that is > > available from /proc/acpi? For example, I use quite extensively CPU > > throttling on my VAIO ("cool & quiet home-made mode"), and I was unable to > > find the equivalent of /proc/acpi/processor/CPU0/throttling ... > > I can't help thinking that that should be going through cpufreq. Yes, I agree. But in the relevant /sys/devices/system/cpu/cpu0/cpufreq there were no "throttling" options (well: as of 2.6.11). Maybe it's something failing in my old vaio fx701, but scaling down frequencies is not sufficient to keep it cool (compiling a kernel in summer in Madrid without air conditioning reliably triggers thermal shutdown if I do not throttle the CPU at level 4 when overheating; I have a little python script running for it). Romano -- Romano Giannetti - Univ. Pontificia Comillas (Madrid, Spain) Electronic Engineer - phone +34 915 422 800 ext 2416 fax +34 915 596 569 http://www.dea.icai.upcomillas.es/romano/ -- La presente comunicaci?n tiene car?cter confidencial y es para el exclusivo uso del destinatario indicado en la misma. Si Ud. no es el destinatario indicado, le informamos que cualquier forma de distribuci?n, reproducci?n o uso de esta comunicaci?n y/o de la informaci?n contenida en la misma est?n estrictamente prohibidos por la ley. Si Ud. ha recibido esta comunicaci?n por error, por favor, notif?quelo inmediatamente al remitente contestando a este mensaje y proceda a continuaci?n a destruirlo. Gracias por su colaboraci?n. This communication contains confidential information. It is for the exclusive use of the intended addressee. If you are not the intended addressee, please note that any form of distribution, copying or use of this communication or the information in it is strictly prohibited by law. If you have received this communication in error, please immediately notify the sender by reply e-mail and destroy this message. Thank you for your cooperation. - 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/