From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755042AbYDRL4T (ORCPT ); Fri, 18 Apr 2008 07:56:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751975AbYDRL4M (ORCPT ); Fri, 18 Apr 2008 07:56:12 -0400 Received: from fg-out-1718.google.com ([72.14.220.155]:63485 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751303AbYDRL4K (ORCPT ); Fri, 18 Apr 2008 07:56:10 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Kb96djIJFBuSjvgzYBXZ5xp3xlM8W8q9Yphr5Itb5y+l3049/rWTZUka3X0/fW7i/RwvGJ8nH3HRUT9ehs07szfewQ4YRe3wy+G0KK08fa4GNxTYGaZKpA7WdAWlQBWwqrXUoR7Zd7S2194bLzrznx25Z1WGpr0FJm2WX5WetAA= Message-ID: Date: Fri, 18 Apr 2008 13:56:09 +0200 From: "Bart Van Assche" To: "Marc Perkel" Subject: Re: AMD Quad Core clock problem? Cc: "Chris Snook" , linux-kernel@vger.kernel.org In-Reply-To: <298557.12633.qm@web52504.mail.re2.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <298557.12633.qm@web52504.mail.re2.yahoo.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 17, 2008 at 8:03 PM, Marc Perkel wrote: > > Thanks Bart - that seems to have worked. A value of > 10025 seems to get it close enough for NTPD to lock > on. I'm using tickadj. > > So - the question is - is this a kernel bug not > calibrating quad core phenoms right or do I just have > a bad motherboard? That's a very good question. I don't have enough knowledge of AMD quad cores and the motherboards they are used in to answer this question. There should be a kernel maintainer that is able to answer this question though. Last year I fixed a similar issue for PPC32. See also http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=0fbbeba2427a842a1a4ac9f379ca2ca37ea907eb;hp=6e1af384f1c1742ae6d86bbf779d4fa020c509bc. Bart.