From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422766AbXCGSDy (ORCPT ); Wed, 7 Mar 2007 13:03:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1422963AbXCGSDx (ORCPT ); Wed, 7 Mar 2007 13:03:53 -0500 Received: from mail8.sea5.speakeasy.net ([69.17.117.10]:44301 "EHLO mail8.sea5.speakeasy.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422766AbXCGSDn (ORCPT ); Wed, 7 Mar 2007 13:03:43 -0500 Date: Wed, 7 Mar 2007 13:03:39 -0500 (EST) From: James Morris X-X-Sender: jmorris@d.namei To: Ingo Molnar cc: Jeremy Fitzhardinge , Virtualization Mailing List , john stultz , LKML , tglx@linutronix.de, akpm@linux-foundation.org Subject: Re: + stupid-hack-to-make-mainline-build.patch added to -mm tree In-Reply-To: <20070307174957.GA31371@elte.hu> Message-ID: References: <45EDD82F.90204@vmware.com> <1173225182.24738.507.camel@localhost.localdomain> <45EE0628.1080108@goop.org> <45EE08E8.2020008@vmware.com> <1173228544.24738.514.camel@localhost.localdomain> <45EE0D10.7070807@vmware.com> <1173230305.24738.529.camel@localhost.localdomain> <45EE1EA3.90803@vmware.com> <1173256666.24738.576.camel@localhost.localdomain> <45EEF966.6060902@goop.org> <20070307174957.GA31371@elte.hu> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 7 Mar 2007, Ingo Molnar wrote: > > * Jeremy Fitzhardinge wrote: > > > Xen, for example, uses the tsc as the principle timebase in the > > hypervisor interface. [...] > > ugh. Please take it from me: i've watched the Linux time code walk its > long, rocky 10+ years road. One of the first mistakes was when we made > the TSC the center of the i386-time universe. (incidentally, it was me > who did the first steps of that, as a rookie kernel hacker) We got cured > out of that in v2.6.19, v2.6.20 and v2.6.21. Granted, Xen is only at the > beginning of that same road. Meet in another 10 years? ;) What do you suggest instead ? (Digging into this for lguest now...) - James -- James Morris