From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263091AbTKCSwW (ORCPT ); Mon, 3 Nov 2003 13:52:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263101AbTKCSwV (ORCPT ); Mon, 3 Nov 2003 13:52:21 -0500 Received: from northuist.CNS.CWRU.Edu ([129.22.104.60]:41366 "EHLO ims-msg.TIS.CWRU.Edu") by vger.kernel.org with ESMTP id S263091AbTKCSwT (ORCPT ); Mon, 3 Nov 2003 13:52:19 -0500 Date: Mon, 03 Nov 2003 18:52:25 +0000 From: Dan Bernard Subject: Re: kernel: i8253 counting too high! resetting.. In-reply-to: <20031103051603.GE530@alpha.home.local> To: Willy Tarreau Cc: CN , linux-kernel@vger.kernel.org Mail-followup-to: Dan Bernard , Willy Tarreau , CN , linux-kernel@vger.kernel.org Message-id: <20031103185225.GA74441%djb29@cwru.edu> MIME-version: 1.0 X-Mailer: Mutt 1.4.1i-JA.1 [JP] (FreeBSD i386) Content-type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary=82I3+IH0IqGh5yIs Content-disposition: inline References: <20031029075010.596C57A6C6@smtp.us2.messagingengine.com> <20031030171235.GA59683@teraz.cwru.edu> <20031031050439.E03B17E2B8@smtp.us2.messagingengine.com> <200310310040.19519.gene.heskett@verizon.net> <20031031063636.GA61826@teraz.cwru.edu> <20031103044155.8D0067DF67@server2.messagingengine.com> <20031103051603.GE530@alpha.home.local> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --82I3+IH0IqGh5yIs Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On 20031103 0616, Willy Tarreau wrote: > There's a simple reason for what you see : this message was introduced in > 2.4.21 to detect buggy hardware. Before 2.4.21, you only had the luck to > see time go backwards without any apparent reason. There was a very long > thread about gettimeofday() jumping backwards a few months ago in which > you may find detailed informations about this problem. That would be the other piece that I'm currently missing regarding the ALi M5819P on the TM5800. On similar "buggy hardware" roughly eight months ago, I got the mysterious chronometer jumps, although none seemed to go backwards in time. Whenever I watched it, it seemed normal, although when I left it alone, the clock, on average, advanced only a few hours per day. I saw this problem persist up to 2.4.20, when I lost hope on that machine and turned it into a FreeBSD workstation. I do not currently remember whether it had any ALi chipsets, and I never saw any weird messages, probably because I never installed any Linux kernels after 2.4.20. Maybe if I run across any Knoppix CD's with recent kernels, I could test that machine for the i8253 messages, but that is not likely at the moment. Regards, Dan Bernard --82I3+IH0IqGh5yIs Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) iD8DBQE/pqPpkv1ulvlcHpMRAnxNAJ9bJF9ygyBc4nsUZCIRfBd71SfsFgCfdHkQ ffBhzEE1s2np4LwSpuT57So= =HLom -----END PGP SIGNATURE----- --82I3+IH0IqGh5yIs--