From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263748AbTDNVCt (for ); Mon, 14 Apr 2003 17:02:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263773AbTDNVCs (for ); Mon, 14 Apr 2003 17:02:48 -0400 Received: from deviant.impure.org.uk ([195.82.120.238]:20419 "EHLO deviant.impure.org.uk") by vger.kernel.org with ESMTP id S263748AbTDNVBt (for ); Mon, 14 Apr 2003 17:01:49 -0400 Date: Mon, 14 Apr 2003 22:13:15 +0100 From: Dave Jones To: Michael Buesch Cc: linux-kernel@vger.kernel.org Subject: Re: 2.5 'what to expect' document. Message-ID: <20030414211311.GA11160@suse.de> Mail-Followup-To: Dave Jones , Michael Buesch , linux-kernel@vger.kernel.org References: <20030414193138.GA24870@suse.de> <200304142308.03553.fsdeveloper@yahoo.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200304142308.03553.fsdeveloper@yahoo.de> User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 14, 2003 at 11:08:03PM +0200, Michael Buesch wrote: > Will it be implemented in future to taint the kernel if CPU is overclocked? Theoretically possible on most CPUs, but it's not that simple. - Some CPUs don't encode the necessary bits to tell you their current multiplier/FSB - Some CPUs don't encode the necessary info to tell you the speed the CPU should be running at. Which leaves those that do have the necessary info.. Which is different per vendor, per family, per model. That's a lot of tests, and it's not a walk in the park to get it all right, which is probably why no-one has done it yet. Alan tried it in the 2.4.early-ac stage, but gave up on it after a while, after getting lots of reports of it not working out as planned.. Dave