From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750709AbWDEN7a (ORCPT ); Wed, 5 Apr 2006 09:59:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750757AbWDEN7a (ORCPT ); Wed, 5 Apr 2006 09:59:30 -0400 Received: from mail.gmx.de ([213.165.64.20]:43179 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S1750709AbWDEN7a (ORCPT ); Wed, 5 Apr 2006 09:59:30 -0400 X-Authenticated: #14349625 Subject: Re: p4-clockmod not working in 2.6.16 From: Mike Galbraith To: Tim Phipps Cc: linux-kernel@vger.kernel.org, Edgar Toernig , Dave Jones In-Reply-To: <1144245205.7571.11.camel@homer> References: <1142974528.3470.4.camel@localhost> <1143008405.13748.4.camel@homer> <1144147663.2588.247.camel@elsdt-scarecrow.arc.com> <200604051302.15576.tim@phipps-hutton.freeserve.co.uk> <1144245205.7571.11.camel@homer> Content-Type: text/plain Date: Wed, 05 Apr 2006 15:59:36 +0200 Message-Id: <1144245577.7571.16.camel@homer> Mime-Version: 1.0 X-Mailer: Evolution 2.4.0 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2006-04-05 at 13:02 +0100, Tim Phipps wrote: > On Tuesday 04 Apr 2006 11:47, Tim Phipps wrote: > > On Wed, 2006-03-22 at 06:20, Mike Galbraith wrote: > > > On Wed, 2006-03-22 at 06:57 +0100, Edgar Toernig wrote: > > > > | N60. Processor May Hang under Certain Frequencies and 12.5% > > > > | STPCLK# Duty Cycle > > > > | > > > > | Problem: If a system de-asserts STPCLK# at a 12.5% duty cycle, > > > > | the processor is running below 2 GHz, and the processor thermal > > > > | control circuit (TCC) on-demand clock modulation is active, the > > > > | processor may hang. This erratum does not occur under the automatic > > > > | mode of the TCC. > > > Here's a patch to 2.6.17-rc1 that disables the 12.5% DC on any CPU that has > N60. The frequencies in the errata are a bit vague so this is the safe bet > and it only disables one of the eight frequencies rather than the current > behaviour which disables all of mine! Works for me. Perhaps you should update... dprintk("has errata -- disabling frequencies lower than 2ghz\n"); ...,slap a Signed-off-by: on it and see if it flys. -Mike P.S. server can't find computer.systems.pipex.net: NXDOMAIN