From owner-freebsd-hardware@FreeBSD.ORG Thu Feb 12 13:52:23 2009 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DB50510656E6 for ; Thu, 12 Feb 2009 13:52:23 +0000 (UTC) (envelope-from won.derick@yahoo.com) Received: from n61.bullet.mail.sp1.yahoo.com (n61.bullet.mail.sp1.yahoo.com [98.136.44.37]) by mx1.freebsd.org (Postfix) with SMTP id A23578FC13 for ; Thu, 12 Feb 2009 13:52:23 +0000 (UTC) (envelope-from won.derick@yahoo.com) Received: from [216.252.122.216] by n61.bullet.mail.sp1.yahoo.com with NNFMP; 12 Feb 2009 13:52:23 -0000 Received: from [69.147.84.102] by t1.bullet.sp1.yahoo.com with NNFMP; 12 Feb 2009 13:52:23 -0000 Received: from [127.0.0.1] by omp206.mail.sp1.yahoo.com with NNFMP; 12 Feb 2009 13:52:23 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 424248.14405.bm@omp206.mail.sp1.yahoo.com Received: (qmail 37812 invoked by uid 60001); 12 Feb 2009 13:52:23 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Mailer:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type:Message-ID; b=JRLU1YYn+8kdUCjocPPKku4QYghhNvQO4SsCjAZpSpZVzSwm+rt+HwPYO6YWM+dsoHZfw2jKXfM9JHCg0SRVp7fMZbRbhlhhGqC4x5x1pWx8/N59n7u87gaqCH3FjavgAV1Njt+T8xW3oss9jRw4q/Wh14vKigOHSIPnlUffCy4=; X-YMail-OSG: iHrXH_wVM1nx2Vt_m06acmi9M08vnprzk7mEg87jY3xB26kL9NTW6zdR8etVtacQc2nYYYet.WG4h9xJPNAaFbkrjMPZVLKLEStcyE5yEmCEp6hXUdCySpG5O7.0d6KzqIGN0G2VWvWnxzh22k40BW2r3WwMN6bRJqQw79Vy8UtL2OHXHpJ_._ezFw-- Received: from [58.71.34.137] by web45806.mail.sp1.yahoo.com via HTTP; Thu, 12 Feb 2009 05:52:22 PST X-Mailer: YahooMailWebService/0.7.260.1 Date: Thu, 12 Feb 2009 05:52:22 -0800 (PST) From: Won De Erick To: freebsd-hardware@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Message-ID: <243201.37742.qm@web45806.mail.sp1.yahoo.com> Subject: Hardware clock is not SYNC'ed with kernel clock by ntpdate? X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: won.derick@yahoo.com List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Feb 2009 13:52:24 -0000 Hi All, I've done the following procedure to verify the unstable date/time being recorded in the hardware clock. I'm using IBM x343 with FreeBSD 6.2: 1. Rebooted the box. Entered a wrong date/time as: Date: December 1, 2008 Time: 12:00:00 2. When the box was UP'ed, displayed the date (the box is sync'ed with an NTP server during start-up). #date Thu Feb 12 15:37:57 PHT 2009 It seems correct. 3. Change with a wrong date/time again, then displayed. # date 0812301200 Tue Dec 30 12:00:00 PHT 2008 # date Tue Dec 30 12:00:14 PHT 2008 It seems correct. 4. Synchronized the date/time with an NTP Server. Then, displayed the date. # ntpdate ph.pool.ntp.org 12 Feb 15:40:59 ntpdate[3094]: step time server 202.92.128.201 offset 3814728.167216 sec # date Thu Feb 12 15:41:33 PHT 2009 It seems correct. 5. Rebooted the box, then verified the system date/time at the BIOS config. System Time 07:43:50 System Date Thu 02/12/2009 Wrong TIME? I think the hardware clock was not properly SYNCed with the kernel clock. I've verified this with other box, and same thing happened. Is there any issues on using date and ntpdate? Thanks, Won