From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rene Rebe Subject: Re: 2.6.21-rc5: Thinkpad X60 gets critical thermal shutdowns Date: Mon, 2 Apr 2007 10:35:40 +0200 Message-ID: <200704021035.40672.rene@exactcode.de> References: <460E0158.7090705@goop.org> <8393D4C0-57C5-4CD2-8CA4-E4241E74FB4E@mac.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mx01.qsc.de ([213.148.129.14]:42886 "EHLO mx01.qsc.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933281AbXDBJEQ convert rfc822-to-8bit (ORCPT ); Mon, 2 Apr 2007 05:04:16 -0400 In-Reply-To: <8393D4C0-57C5-4CD2-8CA4-E4241E74FB4E@mac.com> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Kyle Moffett Cc: Jeremy Fitzhardinge , Andi Kleen , "Brown, Len" , Linux Kernel Mailing List , linux-acpi@vger.kernel.org, Andrew Morton On Sunday 01 April 2007 20:57:57 Kyle Moffett wrote: > On Mar 31, 2007, at 02:36:08, Jeremy Fitzhardinge wrote: > > When I run 2.6.21-rc5 + Andi's x86 patches + paravirt_ops patches, = =20 > > I've been getting my machine shut down with critical thermal =20 > > shutdown messages: > > > > Mar 30 23:19:03 localhost kernel: ACPI: Critical trip point > > Mar 30 23:19:03 localhost kernel: Critical temperature reached (128= =20 > > C), shutting down. > > Mar 30 23:19:03 localhost kernel: Critical temperature reached (128= =20 > > C), shutting down. > > Mar 30 23:19:03 localhost shutdown[19417]: shutting down for system= =20 > > halt > > > > and the machine does feel pretty hot. Interestingly, when the =20 > > machine reboots, the fan spins up to a noticeably higher speed, so = =20 > > it seems that maybe something is getting fan speed control wrong. >=20 > Well, 128C is more than hot enough to boil water and well above the =20 > thermal tolerances of most CPUs, so I would imagine that were your =20 > CPU actually that hot it wouldn't be capable of printing the =20 > "Critical temperature reached" messages, let alone properly rebooting= =2E IIRC a MSI Megabook S270 (I formerly owned) BIOS notifies this "Critical temperature reached (128C)" when the battery run empty when the OS did no action due to battery low indications. I guess the BIOS people thought this is a good last resort to let the OS really shutdown before the box just turns off. Yours, --=20 Ren=E9 Rebe - ExactCODE GmbH - Europe, Germany, Berlin http://exactcode.de | http://t2-project.org | http://rene.rebe.name +49 (0)30 / 255 897 45 - To unsubscribe from this list: send the line "unsubscribe linux-acpi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html