From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932380AbVJLAO6 (ORCPT ); Tue, 11 Oct 2005 20:14:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932381AbVJLAO6 (ORCPT ); Tue, 11 Oct 2005 20:14:58 -0400 Received: from shawidc-mo1.cg.shawcable.net ([24.71.223.10]:19744 "EHLO pd2mo1so.prod.shaw.ca") by vger.kernel.org with ESMTP id S932380AbVJLAO5 (ORCPT ); Tue, 11 Oct 2005 20:14:57 -0400 Date: Tue, 11 Oct 2005 18:18:11 -0600 From: Robert Hancock Subject: Re: Dual Xeon Time skips with 2.6 In-reply-to: <4WyVi-5Xb-15@gated-at.bofh.it> To: linux-kernel Message-id: <434C5643.3040706@shaw.ca> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7bit X-Accept-Language: en-us, en References: <4WbYJ-3Jt-17@gated-at.bofh.it> <4WbYJ-3Jt-15@gated-at.bofh.it> <4WyVi-5Xb-15@gated-at.bofh.it> User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Bill Davidsen wrote: > This sounds familiar, although much larger than what I see, is it > possible for an Intel dual core CPU to do this as well? I sometimes see > very unintuitive timestamps on network stuff. As far as I know that shouldn't happen.. though people thought the same thing with AMD dual core CPUs and it turns out the TSCs can apparently drift, I believe this was recently changed. Can you verify whether or not this sort of time skew is actually happening? -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@nospamshaw.ca Home Page: http://www.roberthancock.com/