From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756862AbZBRVF7 (ORCPT ); Wed, 18 Feb 2009 16:05:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751425AbZBRVFv (ORCPT ); Wed, 18 Feb 2009 16:05:51 -0500 Received: from hpsmtp-eml17.KPNXCHANGE.COM ([213.75.38.117]:14220 "EHLO hpsmtp-eml17.kpnxchange.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751382AbZBRVFu (ORCPT ); Wed, 18 Feb 2009 16:05:50 -0500 From: Frans Pop To: jplatte@naasa.net Subject: Re: cpuinfo shows wrong MHz value Date: Wed, 18 Feb 2009 22:05:46 +0100 User-Agent: KMail/1.9.9 Cc: Kasper Sandberg , linux-kernel@vger.kernel.org, Matthew Garrett References: <200902142217.51655.jplatte@naasa.net> <200902151741.30303.elendil@planet.nl> <200902182054.38840.jplatte@naasa.net> In-Reply-To: <200902182054.38840.jplatte@naasa.net> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200902182205.47737.elendil@planet.nl> X-OriginalArrivalTime: 18 Feb 2009 21:05:48.0247 (UTC) FILETIME=[AC2A0E70:01C9920C] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 18 February 2009, Joerg Platte wrote: > The last kernel that was working correct was 2.6.24 (here the output > from 2.6.24.6): Right. I suspect then that the following commit may be the cause of the regression: commit ed9cbcd40004904dbe61ccc16d6106a7de38c998 Author: Zhao Yakui Date: Tue Nov 20 14:20:21 2007 -0500 Revert "speedstep-lib.c: fix frequency multiplier for Pentium4 models 0&1" That would exactly explain the factor 8 of the error. Do you have a line like the following in your debug output? P4 - FSB %u kHz; Multiplier %u; Speed %u kHz\n If so, what does it say for .24 and .28? Can you please provide the output of 'x86info -a' (as root) after loading the cpuid module?