From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750728AbVHPXRN (ORCPT ); Tue, 16 Aug 2005 19:17:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750731AbVHPXRN (ORCPT ); Tue, 16 Aug 2005 19:17:13 -0400 Received: from locomotive.csh.rit.edu ([129.21.60.149]:63316 "EHLO locomotive.unixthugs.org") by vger.kernel.org with ESMTP id S1750728AbVHPXRM (ORCPT ); Tue, 16 Aug 2005 19:17:12 -0400 Message-ID: <430273F3.2000204@suse.com> Date: Tue, 16 Aug 2005 19:17:07 -0400 From: Jeff Mahoney User-Agent: Mozilla Thunderbird 1.0 (X11/20041207) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Christoph Lameter Cc: jerome lacoste , lkml , Marie-Helene Lacoste Subject: Re: 2.6.12.3 clock drifting twice too fast (amd64) References: <5a2cf1f6050816031011590972@mail.gmail.com> In-Reply-To: X-Enigmail-Version: 0.92.0.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Christoph Lameter wrote: > On Tue, 16 Aug 2005, jerome lacoste wrote: > >>Installed stock 2.6.12.3 on a brand new amd64 box with an Asus extreme >>AX 300 SE/t mainboard. >> >>I remember seeing a message in the boot saying something along: >> >> "cannot connect to hardware clock." >> >>And now I see that the time is changing too fast (about 2 seconds each second). > > The timer interrupt is probably called twice for some reason and therefore > time runs twice as fast. Try using HPET for interrupt timing. > >>I don't have visual on the boot sequence anymore (only remote access). > > Use serial console or netconsole. The boot information is logged. Try > dmesg. I am seeing similar results on my Acer Ferrari 4000 (Turion64 ML-37). It does appear that time is running 2x normal time. Booting with noapictimer cleared up the timing issues, though it did introduce some IRQ badness. - -Jeff - -- Jeff Mahoney SuSE Labs -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) iD8DBQFDAnPzLPWxlyuTD7IRAuQ+AKCoK4Bvj9YaSxK1cYzK/LQUGcj2pQCgmBKK hGeSfGE+CvdNzqW3pN5LQq8= =wtra -----END PGP SIGNATURE-----