From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268965AbUHME2U (ORCPT ); Fri, 13 Aug 2004 00:28:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268966AbUHME2U (ORCPT ); Fri, 13 Aug 2004 00:28:20 -0400 Received: from shawidc-mo1.cg.shawcable.net ([24.71.223.10]:28555 "EHLO pd4mo2so.prod.shaw.ca") by vger.kernel.org with ESMTP id S268965AbUHME2P (ORCPT ); Fri, 13 Aug 2004 00:28:15 -0400 Date: Thu, 12 Aug 2004 22:22:58 -0600 From: Robert Hancock Subject: Re: Allow userspace do something special on overtemp To: linux-kernel Message-id: <00fe01c480ed$36a08330$6401a8c0@northbrook> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Mailer: Microsoft Outlook Express 6.00.2900.2180 Content-type: text/plain; format=flowed; charset=iso-8859-1; reply-type=original Content-transfer-encoding: 7bit X-Priority: 3 X-MSMail-priority: Normal References: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org ----- Original Message ----- From: "Pavel Machek" Newsgroups: fa.linux.kernel To: "Len Brown" Cc: "Dax Kelson" ; ; ; "Kernel Mailing List" Sent: Thursday, August 12, 2004 5:25 PM Subject: Re: Allow userspace do something special on overtemp > Ouch and btw I've done some torturing on one prototype (AMD). It had > thermal at 98Celsius (specs for this cpu said 95C max), and I ended my > test at 105Celsius. I do not know about TM1/TM2 etc, but in this case > hardware clearly failed to do the right thing. This is dependent on the CPU/motherboard in use - AMD CPUs (up to the last ones I heard about, anyway) don't have any built in thermal protection, they rely on the motherboard to shut down the CPU in the event of over-temperature. Intel CPUs since the Pentium II all shut down on excessive over-temperature; Pentium 4s will also clock-throttle to continue operating before they get to this point.