From owner-freebsd-stable@FreeBSD.ORG Wed May 2 04:51:01 2007 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 22BD516A400 for ; Wed, 2 May 2007 04:51:01 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from alnrmhc14.comcast.net (alnrmhc14.comcast.net [206.18.177.54]) by mx1.freebsd.org (Postfix) with ESMTP id 03EBE13C43E for ; Wed, 2 May 2007 04:51:00 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from icarus.home.lan (c-71-198-0-135.hsd1.ca.comcast.net[71.198.0.135]) by comcast.net (alnrmhc14) with ESMTP id <20070502045100b140087tfie>; Wed, 2 May 2007 04:51:00 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id DB7BB1FA01D; Tue, 1 May 2007 21:50:59 -0700 (PDT) Date: Tue, 1 May 2007 21:50:59 -0700 From: Jeremy Chadwick To: Martin Dieringer Message-ID: <20070502045059.GA69219@icarus.home.lan> Mail-Followup-To: Martin Dieringer , freebsd-stable@freebsd.org References: <20070501204548.L860@thinkpad.dieringer.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070501204548.L860@thinkpad.dieringer.dyndns.org> User-Agent: Mutt/1.5.15 (2007-04-06) Cc: freebsd-stable@freebsd.org Subject: Re: clock too slow - big time offset with ntpdate 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, 02 May 2007 04:51:01 -0000 On Tue, May 01, 2007 at 08:50:10PM +0200, Martin Dieringer wrote: > I get about half a second time offsets after 10 seconds, and more > than 100s after half an hour or so. > I think it has to do with powerd, if I kill that, the time stays correct. > It happens both on a Compaq nc4000 and an IBM ThinkPad T42p laptop. I'm sorry this isn't more conclusive... This almost sounds like an interrupt-related problem while in a power-saving state. I swear I just read a thread about this on -stable, pertaining to how certain power states disable features of interrupt controllers... I can't seem to find the discussion though, argh! -- | 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 |