From owner-freebsd-stable@FreeBSD.ORG Wed Jan 21 20:09:59 2009 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 1F91B10656CB for ; Wed, 21 Jan 2009 20:09:59 +0000 (UTC) (envelope-from mkhitrov@gmail.com) Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.156]) by mx1.freebsd.org (Postfix) with ESMTP id A0F428FC12 for ; Wed, 21 Jan 2009 20:09:58 +0000 (UTC) (envelope-from mkhitrov@gmail.com) Received: by fg-out-1718.google.com with SMTP id l26so2275606fgb.35 for ; Wed, 21 Jan 2009 12:09:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=h5ee61LbnAA1mu768ox04dV2/iyReaihaPXnrVR1D7o=; b=qwmrT5dVsy88LjwUxhyoZPNsqduE3ehINYt3D5VOhC35KbF2OG0Sx6mfSDmajOedMb 8wMhl3F2PmNwFqYABZEd/ZNmg0Iip1xVRIC2xx15XFaTq43xXxk79CPOfmQoxGoXVdAF OoMI/EqCIskMaEaqdlWnFW3xtS6qkvCqOrRXM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=qTFNsEO3Gcz1BWAXyPTGBJvDRQBU7d0WeHOxQn9ZRLPx/yXoXzYr6UnnsT+FjwUkAK LbVesdKaxild4v8MMwUkX+QbK2PaPS26jHUeONj1C37+xPsli5hW9neSrRpYPuCb1bN+ lpHLy5pyZTPDKHy/h//Y95zvIrQTtBiD97hos= MIME-Version: 1.0 Received: by 10.223.106.68 with SMTP id w4mr772351fao.19.1232568597057; Wed, 21 Jan 2009 12:09:57 -0800 (PST) In-Reply-To: <49777A7E.30904@sailorfej.net> References: <49777A7E.30904@sailorfej.net> Date: Wed, 21 Jan 2009 15:09:56 -0500 Message-ID: <26ddd1750901211209k83250d7re8bb82dc2965ccd0@mail.gmail.com> From: Maxim Khitrov To: Jeffrey Williams Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: FreeBSD 7, runaway clock as guest OS on Microsoft Virtual Server 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: Wed, 21 Jan 2009 20:10:00 -0000 On Wed, Jan 21, 2009 at 2:41 PM, Jeffrey Williams wrote: > Hi Folks, > > I am trying to run FreeBSD 7 on Microsoft Virtual Server 2005 R2, Windows > Server 2003, on a Dell 2950. > > I am having a problem with the system clock running excessively fast, I > initially tried installing 7.1 release but received a nearly continuous > stream of the "calcru: runtime went backward errors", I tried rolling back > to 7.0, and it improved somewhat, but I still received regular "calcru" > errors, and it the system clock was running to fast for ntpd to keep up with > it, I set sysctl kern.timecounter.hardware to i8254 (it tries to default to > ACPI-safe), which helped more, ntpd is now able to keep pace with it, but > only barely, and I haven't seen any "calcru" errors yet. > > From the boot time dmesg, on the CPU line, the frequency reported with in > the parenthesizes varies on almost every reboot. > > Are there any other adjustments I can make to get this under control? Have you tried reducing the value of kern.hz (kern.hz="100" in /boot/loader.conf)? That fixes some clock-related problems on VMWare Server. - Max