From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4694 invoked by alias); 20 Sep 2004 19:29:49 -0000 Mailing-List: contact libc-hacker-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-hacker-owner@sources.redhat.com Received: (qmail 4677 invoked from network); 20 Sep 2004 19:29:49 -0000 Received: from unknown (HELO mx1.redhat.com) (66.187.233.31) by sourceware.org with SMTP; 20 Sep 2004 19:29:49 -0000 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.12.11/8.12.10) with ESMTP id i8KJTnFw015926 for ; Mon, 20 Sep 2004 15:29:49 -0400 Received: from lacrosse.corp.redhat.com (lacrosse.corp.redhat.com [172.16.52.154]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id i8KJTnr11131; Mon, 20 Sep 2004 15:29:49 -0400 Received: from [10.0.1.84] (drepper.cipe.redhat.com [10.0.1.84]) by lacrosse.corp.redhat.com (8.11.6/8.11.6) with ESMTP id i8KJTfa04472; Mon, 20 Sep 2004 15:29:42 -0400 Message-ID: <414F2F98.9020905@redhat.com> Date: Mon, 20 Sep 2004 19:29:00 -0000 From: Ulrich Drepper Organization: Red Hat, Inc. User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8a4) Gecko/20040915 MIME-Version: 1.0 To: Roland McGrath CC: GNU libc hacker Subject: Re: setXid References: <200409201920.i8KJK8Vm024192@magilla.sf.frob.com> In-Reply-To: <200409201920.i8KJK8Vm024192@magilla.sf.frob.com> X-Enigmail-Version: 0.86.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-SW-Source: 2004-09/txt/msg00075.txt.bz2 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Roland McGrath wrote: > To be fair, we haven't presented Linus et al with an actual implementation > to fix the kernel semantics cleanly. I have exchanged a lot of emails on this topic with Linus and several others. The main point they disagree with you is ... > I have never been in favor of a per-thread ID extension. They definitely want to preserve this and therefore any kernel solution is as nonatomic as the userlevel implementation. (not my analysis). I think this is as good as we'll get it any time soon (or ever). - -- ? Ulrich Drepper ? Red Hat, Inc. ? 444 Castro St ? Mountain View, CA ? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (GNU/Linux) iD8DBQFBTy+Y2ijCOnn/RHQRAp0kAKCMvNPxm3G55EXRmC6I7pP0+iVoVACgkCIB 4OCcjhSMSz+1NE/NM7nrDP8= =mwIF -----END PGP SIGNATURE-----