From owner-freebsd-stable@FreeBSD.ORG Sun Apr 6 18:03:24 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3F4D61065671; Sun, 6 Apr 2008 18:03:24 +0000 (UTC) (envelope-from jdc@parodius.com) Received: from mx01.sc1.parodius.com (mx01.sc1.parodius.com [72.20.106.3]) by mx1.freebsd.org (Postfix) with ESMTP id 224228FC17; Sun, 6 Apr 2008 18:03:23 +0000 (UTC) (envelope-from jdc@parodius.com) Received: by mx01.sc1.parodius.com (Postfix, from userid 1000) id DD3F71CC038; Sun, 6 Apr 2008 11:03:23 -0700 (PDT) Date: Sun, 6 Apr 2008 11:03:23 -0700 From: Jeremy Chadwick To: Guido van Rooij Message-ID: <20080406180323.GA65787@eos.sc1.parodius.com> References: <20080404174605.GA41929@gvr.gvr.org> <20080404194238.GA75601@walton.maths.tcd.ie> <20080405091349.GA78080@gvr.gvr.org> <20080405105803.GA2947@eos.sc1.parodius.com> <20080406152407.GA1836@gvr.gvr.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080406152407.GA1836@gvr.gvr.org> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: David Malone , freebsd-stable@freebsd.org, jhb@freebsd.org, nate@root.org Subject: Re: NTP on amd74 + powernow issues X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Apr 2008 18:03:24 -0000 On Sun, Apr 06, 2008 at 05:24:07PM +0200, Guido van Rooij wrote: > On Sat, Apr 05, 2008 at 03:58:03AM -0700, Jeremy Chadwick wrote: > > On Sat, Apr 05, 2008 at 11:13:49AM +0200, Guido van Rooij wrote: > > > On Fri, Apr 04, 2008 at 08:42:38PM +0100, David Malone wrote: > > > > On Fri, Apr 04, 2008 at 07:46:05PM +0200, Guido van Rooij wrote: > > > > > I've got a amd64 system where I;m using powernow. I am using th i8254 > > > > > timecounter. I keep getting time resets from ntp: > > > > > > > > I don't think the i8254 should be effected by the i8254. Are there > > > > any other choices listed under kern.timecounter.choice? I have one > > > > amd64 machine running powerd to control the powernow stuff and it > > > > works OK with the ACPI timer. > > > > > > Nope: > > > kern.timecounter.choice: TSC(800) i8254(0) dummy(-1000000) > > > > > > IIRC I couldn't boot at all with acpi, so I disabled it. > > > > ACPI-fast should address the problem you're seeing with NTP drift. > > > > It would then be best to figure out why your machine won't boot with > > ACPI enabled. > > This lead to a panic as is described here: > http://bsd.haofood.net/2005/11/21/work-around-for-busted-rs-acpi-long/ > > The panic occurs because a \0 is in the namespace. It was suggested > to fix the problem by overwriting \0 with X or _ when loading the > acpi tables. > > This has not been fixed and there is no bios update for the motherboard... Ouch. Seems MSI should really be addressing this with a BIOS update, but I don't know of any technical contacts at MSI who could help with this. I realise it's probably in violation of the ACPI spec (re: MSI's fault), but other OSes probably have similar workarounds. Nate and/or John, is there any chance of getting a patch in for this, epsecially since it was reported over 2 years ago? -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |