From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762330AbYDNQ1j (ORCPT ); Mon, 14 Apr 2008 12:27:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758303AbYDNQ1a (ORCPT ); Mon, 14 Apr 2008 12:27:30 -0400 Received: from terminus.zytor.com ([198.137.202.10]:34400 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757417AbYDNQ1a (ORCPT ); Mon, 14 Apr 2008 12:27:30 -0400 Message-ID: <4803851A.8090206@zytor.com> Date: Mon, 14 Apr 2008 09:23:54 -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> <4802608A.3040901@zytor.com> <20080414151222.GF7385@csclub.uwaterloo.ca> In-Reply-To: <20080414151222.GF7385@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: > On Sun, Apr 13, 2008 at 12:35:38PM -0700, H. Peter Anvin wrote: >> "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. > > True, but usually they give you an option to turn it off in the BIOS to > make the system actually work with things like NTP. > > Maybe I should have said "Any system with spread spectrum enabled". > That, too, is clearly unrealistic, or NTP would be useless except on dedicated systems. -hpa