From owner-freebsd-questions@FreeBSD.ORG Tue Mar 21 20:03:07 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 67D9C16A423 for ; Tue, 21 Mar 2006 20:03:07 +0000 (UTC) (envelope-from alfred.morgan@experclick.com) Received: from mail20.intermedia.net (mail20.intermedia.net [64.78.61.199]) by mx1.FreeBSD.org (Postfix) with ESMTP id 318DA43D49 for ; Tue, 21 Mar 2006 20:03:06 +0000 (GMT) (envelope-from alfred.morgan@experclick.com) Received: from [192.168.102.54] (cust-64-4-140-149.dsl.fix.net [64.4.140.149]) by mail20.intermedia.net (Postfix) with ESMTP id F309ED7D5 for ; Tue, 21 Mar 2006 12:03:01 -0800 (PST) Message-ID: <44204E79.4090408@experclick.com> Date: Tue, 21 Mar 2006 11:05:29 -0800 From: Alfred Morgan User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.12) Gecko/20060213 X-Accept-Language: en-us, en To: freebsd-questions@freebsd.org Content-Transfer-Encoding: 7bit MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: clock drifts after upgrade from 5.x to 6.x X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Mar 2006 20:03:07 -0000 I have upgraded 4 different machines from various FreeBSD versions of 5 to various versions of 6 and 3 of the machines has a problem where the clock will drift very quickly slowing about 2 seconds per minute. These are the machines with dmesg | grep time: (specs from [1]www.hp.com) *(no drift) HP pavilion a510n (Via KM400A, ASUS A7V8X-LA) Timecounter "i8254" frequency 1193182 Hz quality 0 Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0 pmtimer0 on isa0 Timecounter "TSC" frequency 2100094312 Hz quality 800 Timecounters tick every 1.000 msec *(bad drift) HP pavilion a510n (Via KM400A, ASUS A7V8X-LA) Timecounter "i8254" frequency 1193182 Hz quality 0 pci0: at device 17.5 (no driver attached) pmtimer0 on isa0 Timecounter "TSC" frequency 2100088469 Hz quality 800 Timecounters tick every 1.000 msec *(bad drift) Compaq Presario SR1230NX (Via KM400A, A7V8Z-LA) *(bad drift) Compaq Presario S6500NX (Via KM400, ASUS A7V8X-LA) Timecounter "TSC" frequency 2158040786 Hz quality 800 Timecounters tick every 1.000 msec Timecounter "i8254" frequency 1193182 Hz quality 0 The one computer that did work (the first HP pavilion a510n) seems to be the only one with ACPI enabled. -alfred References 1. http://www.hp.com/