From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754829AbYHMUnG (ORCPT ); Wed, 13 Aug 2008 16:43:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752006AbYHMUmt (ORCPT ); Wed, 13 Aug 2008 16:42:49 -0400 Received: from out2.smtp.messagingengine.com ([66.111.4.26]:49229 "EHLO out2.smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751654AbYHMUms (ORCPT ); Wed, 13 Aug 2008 16:42:48 -0400 X-Sasl-enc: KyrgSw/tPoekjuqZNWRTkDLO5SGyddLTI/DQlXTncZS2 1218660166 Date: Wed, 13 Aug 2008 17:42:42 -0300 From: Henrique de Moraes Holschuh To: Pavel Machek Cc: Milan Broz , Andi Kleen , kernel list , ACPI mailing list Subject: Re: 2.6.27-rc1: critical thermal shutdown on thinkpad x60 Message-ID: <20080813204242.GC27546@khazad-dum.debian.net> References: <20080806090246.GA1572@elf.ucw.cz> <87bq046cht.fsf@basil.nowhere.org> <20080812094135.GA1565@elf.ucw.cz> <20080812105409.GA1366@one.firstfloor.org> <48A16EFC.1050401@redhat.com> <20080812112602.GA2948@elf.ucw.cz> <20080813201359.GA27546@khazad-dum.debian.net> <20080813202801.GC8861@elf.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080813202801.GC8861@elf.ucw.cz> X-GPG-Fingerprint: 1024D/1CDB0FE3 5422 5C61 F6B7 06FB 7E04 3738 EE25 DE3F 1CDB 0FE3 User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 13 Aug 2008, Pavel Machek wrote: > On Wed 2008-08-13 17:13:59, Henrique de Moraes Holschuh wrote: > > On Tue, 12 Aug 2008, Pavel Machek wrote: > > > > Now, the CPU cores remains on 1.67GHz and fan is unable to cool them properly > > > > under heavy load (even if I set "level disengaged" through thinkpad fan control, > > > > temperature sensor shows after a while 128 C (probably not real temp, > > > > I expect some critical flag => and it properly switch off the > > > > system...) > > > > > > How do you control fans? I could not get anything but -EINVAL from IBM > > > ACPI driver :-(. > > > > thinkpad-acpi will regard 128 and -128 as invalid sensors, because that's > > how they are used in some BIOSes (and ECs). We used to bother only with > > -128, but Lenovo did something wierd in one of the EC firmwares and I had to > > add +128 too. That masks the "help, I am melting" reading. > > It was simpler than that. I did not pass "fan_control=1" option. > > (Actually... I do not think that option is needed. If fan control is > known to work, it should be just enabled...) I require explicit user permission to activate knobs that are that dangerous, and actively frowned upon by the manufacturer. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh