Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751009AbVL3EEy (ORCPT ); Thu, 29 Dec 2005 23:04:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751014AbVL3EEy (ORCPT ); Thu, 29 Dec 2005 23:04:54 -0500 Received: from mx1.redhat.com ([66.187.233.31]:31445 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S1751004AbVL3EEx (ORCPT ); Thu, 29 Dec 2005 23:04:53 -0500 Message-ID: <43B4B1AF.3020303@redhat.com> Date: Thu, 29 Dec 2005 20:03:59 -0800 From: Ulrich Drepper Organization: Red Hat, Inc. User-Agent: Mail/News 1.5 (X11/20051129) MIME-Version: 1.0 To: Matt Mackall CC: akpm@osdl.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Make sysenter support optional References: <20051228212402.GX3356@waste.org> <43B30E19.6080207@redhat.com> <20051229195641.GB3356@waste.org> <43B4A3CA.4060406@redhat.com> <20051230033803.GG3356@waste.org> In-Reply-To: <20051230033803.GG3356@waste.org> X-Enigmail-Version: 0.93.1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig9567545C923B1DF8948ACDC9" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1721 Lines: 47 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig9567545C923B1DF8948ACDC9 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Matt Mackall wrote: > Ok, let me be explicit: think systems with absolutely no facility for > recording or displaying a backtrace. You don't know much about unwinding, do you? The same information is needed for C++ exception handling, thread cancellation, etc. Now go on and tell me you don't need this either. > As far as I'm aware, uclibc has no vdso support, so it might as well > not exist for systems using it. And I told you that the support which magically makes all this sometimes work without the unwind info in the vdso will sooner or later break. Then whatever other libc is out there has to get vdso support to be able to function correctly. --=20 =E2=9E=A7 Ulrich Drepper =E2=9E=A7 Red Hat, Inc. =E2=9E=A7 444 Castro St = =E2=9E=A7 Mountain View, CA =E2=9D=96 --------------enig9567545C923B1DF8948ACDC9 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFDtLGv2ijCOnn/RHQRAjKqAJoD36yWeSnnupr+XxzgnhicyHQLTwCgr95c IYEj4VhAJ8aq142frfuhalo= =DDB7 -----END PGP SIGNATURE----- --------------enig9567545C923B1DF8948ACDC9-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/