From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: time drift on dom0 Date: Sun, 16 Jan 2005 00:38:41 +0100 Message-ID: References: <41E9A625.6060609@codemonkey.ws> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: In-Reply-To: <41E9A625.6060609@codemonkey.ws> (Anthony Liguori's message of "Sat, 15 Jan 2005 17:24:21 -0600") Sender: xen-devel-admin@lists.sourceforge.net Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Anthony Liguori Cc: xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org Anthony Liguori writes: > Adam Heath wrote: > >>I have just noticed a 9s drift in 12 hours in dom0(not running ntp, hadn't yet >>been installed). >> >> > I've been using Xen exclusively on one of my machines for the past > couple of weeks and I've also noticed a time drift. I've noticed it > more as minutes over the course of a week. I thought it was just my > hardware dying... > > I've seen this on 2.0.2 with 2.6.9 and 2.0.3 with 2.6.10. It's probably losing some timer interrupts. The lost tick handling in Linux is not very clever and results in drifting time. -Andi ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt