From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 3 May 2001 03:45:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 3 May 2001 03:45:18 -0400 Received: from deliverator.sgi.com ([204.94.214.10]:875 "EHLO deliverator.sgi.com") by vger.kernel.org with ESMTP id ; Thu, 3 May 2001 03:45:15 -0400 X-Mailer: exmh version 2.1.1 10/15/1999 From: Keith Owens To: kaih@khms.westfalen.de (Kai Henningsen) cc: linux-kernel@vger.kernel.org Subject: Re: X15 alpha release: as fast as TUX but in user space (fwd) In-Reply-To: Your message of "03 May 2001 09:13:00 +0200." <80BTbB7Hw-B@khms.westfalen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Thu, 03 May 2001 17:44:36 +1000 Message-ID: <13656.988875876@kao2.melbourne.sgi.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 03 May 2001 09:13:00 +0200, kaih@khms.westfalen.de (Kai Henningsen) wrote: >pavel@suse.cz (Pavel Machek) wrote on 30.04.01 in <20010430104231.C3294@bug.ucw.cz>: > >> PS: Hmm, how do you do timewarp for just one userland appliation with >> this installed? > >1. What on earth for? Y10K testing :) >2. How do you do it today, and why wouldn't that work? LD_PRELOAD on a library that overrides gettimeofday(). I can see no reason why that would not continue to work. What would stop working are timewarp modules that intercepted the syscall at the kernel level instead of user space level.