From owner-freebsd-stable@FreeBSD.ORG Tue Mar 2 17:36:35 2010 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 68E321065687 for ; Tue, 2 Mar 2010 17:36:35 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta13.westchester.pa.mail.comcast.net (qmta13.westchester.pa.mail.comcast.net [76.96.59.243]) by mx1.freebsd.org (Postfix) with ESMTP id 147248FC1C for ; Tue, 2 Mar 2010 17:36:34 +0000 (UTC) Received: from omta12.westchester.pa.mail.comcast.net ([76.96.62.44]) by qmta13.westchester.pa.mail.comcast.net with comcast id oFu61d0010xGWP85DHcbep; Tue, 02 Mar 2010 17:36:35 +0000 Received: from koitsu.dyndns.org ([98.248.46.159]) by omta12.westchester.pa.mail.comcast.net with comcast id oHca1d0013S48mS3YHcawR; Tue, 02 Mar 2010 17:36:35 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id C4F911E3035; Tue, 2 Mar 2010 09:36:32 -0800 (PST) Date: Tue, 2 Mar 2010 09:36:32 -0800 From: Jeremy Chadwick To: Ruben de Groot , "C. P. Ghost" , freebsd-stable@freebsd.org Message-ID: <20100302173632.GA29314@icarus.home.lan> References: <20100301203450.GA99170@ei.bzerk.org> <20100301211441.GB99170@ei.bzerk.org> <20100302084347.GA4719@ei.bzerk.org> <20100302171227.GA26933@ei.bzerk.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100302171227.GA26933@ei.bzerk.org> User-Agent: Mutt/1.5.20 (2009-06-14) Cc: Subject: Re: stable-8 regression: time stands still 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: Tue, 02 Mar 2010 17:36:35 -0000 On Tue, Mar 02, 2010 at 06:12:27PM +0100, Ruben de Groot wrote: > On Tue, Mar 02, 2010 at 12:09:21PM +0100, C. P. Ghost typed: > > On Tue, Mar 2, 2010 at 9:43 AM, Ruben de Groot wrote: > > > malenfant# sysctl kern.timecounter > > > kern.timecounter.tick: 1 > > > kern.timecounter.choice: TSC(-100) HPET(900) ACPI-safe(850) i8254(0) dummy(-1000000) > > > kern.timecounter.hardware: HPET > > > > Just a wild guess... but is HPET really enabled in the BIOS? > > Well, there's no such option in the BIOS. Just checked. It's btw an AMI BIOS. > I'm totally unfamiliar with timecounter hardware, but after resetting the BIOS to > factory settings (which I think it allready was, since I only change anything > there when there is a real reason) the problem persists. The BIOS option could be labelled something like "Multimedia Timer" or "High Prevision Event Timer". Each mainboard or BIOS manufacturer seems to have their own naming convention for it, though Wikipedia does shed some light on the confusion. > I'm going to get this kern.timecounter sysctl from the system booted with a 7.x livecd > this evening. But really, I think this is a regression. Even if this system is the only > one known to be affected (which I sincerely doubt). You can force a timecounter choice by setting it in /boot/loader.conf. I would recommend choosing ACPI-safe on your system to see if that improves things: kern.timecounter.hardware=ACPI-safe -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |