From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265275AbUBFJX6 (ORCPT ); Fri, 6 Feb 2004 04:23:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265333AbUBFJX6 (ORCPT ); Fri, 6 Feb 2004 04:23:58 -0500 Received: from cpe-24-221-190-179.ca.sprintbbd.net ([24.221.190.179]:1178 "EHLO myware.akkadia.org") by vger.kernel.org with ESMTP id S265275AbUBFJX5 (ORCPT ); Fri, 6 Feb 2004 04:23:57 -0500 Message-ID: <40235D0B.5090008@redhat.com> Date: Fri, 06 Feb 2004 01:23:23 -0800 From: Ulrich Drepper Organization: Red Hat, Inc. User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7a) Gecko/20040205 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Andrea Arcangeli CC: Rik van Riel , Jamie Lokier , Andi Kleen , johnstul@us.ibm.com, linux-kernel@vger.kernel.org Subject: Re: [RFC][PATCH] linux-2.6.2-rc2_vsyscall-gtod_B1.patch References: <20040205214348.GK31926@dualathlon.random> <20040206042815.GO31926@dualathlon.random> In-Reply-To: <20040206042815.GO31926@dualathlon.random> X-Enigmail-Version: 0.83.2.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Andrea Arcangeli wrote: > I don't think I was arguing against it completely, exactly because I'm > just saying it should be optional. And the result is that the current fast syscall handling on x86-64 is completely unacceptable. If it's not change security enhancements are not possible since the libc has to hardcode the address. - -- ➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQFAI10P2ijCOnn/RHQRAuegAKCtk8W1cXWKlTWkDrmfJfykzvqATQCfRX4Q cUVAR4+yIue/MFRL2xNbwfQ= =VHoF -----END PGP SIGNATURE-----