From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754686AbYDMTg0 (ORCPT ); Sun, 13 Apr 2008 15:36:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752510AbYDMTgS (ORCPT ); Sun, 13 Apr 2008 15:36:18 -0400 Received: from terminus.zytor.com ([198.137.202.10]:54878 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751807AbYDMTgS (ORCPT ); Sun, 13 Apr 2008 15:36:18 -0400 Message-ID: <4802608A.3040901@zytor.com> Date: Sun, 13 Apr 2008 12:35:38 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.12 (X11/20080226) MIME-Version: 1.0 To: Lennart Sorensen CC: Marc Perkel , Chris Snook , linux-kernel@vger.kernel.org Subject: Re: AMD Quad Core clock problem? References: <47FFD3F3.50107@redhat.com> <821384.64293.qm@web52504.mail.re2.yahoo.com> <20080411213843.GH2160@csclub.uwaterloo.ca> In-Reply-To: <20080411213843.GH2160@csclub.uwaterloo.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Lennart Sorensen wrote: > > I have found that ntp tends to fail to work on any machine with spread > spectrum clocking enabled. On those machines disabling spread specturm > in the BIOS seems to fix it. I had to update the BIOS on one machine to > even get the option to disable it though. > "Any machine with spread spectrum clocking" is a pretty outrageous claim, since that includes just about 100% of all machines built today -- it's virtually impossible getting RFI certification without it. -hpa