From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:41743 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161038AbbEOUyH (ORCPT ); Fri, 15 May 2015 16:54:07 -0400 Message-ID: <1431723223.6315.124.camel@decadent.org.uk> Subject: Re: [ 05/48] x86_64, switch_to(): Load TLS descriptors before switching DS and ES From: Ben Hutchings To: Andi Kleen Cc: Willy Tarreau , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Andy Lutomirski , Linus Torvalds , Ingo Molnar Date: Fri, 15 May 2015 21:53:43 +0100 In-Reply-To: <20150515155334.GC19417@two.firstfloor.org> References: <20150515080530.510828652@1wt.eu> <1431693140.6315.109.camel@decadent.org.uk> <20150515133820.GA30744@1wt.eu> <1431699933.6315.115.camel@decadent.org.uk> <20150515155334.GC19417@two.firstfloor.org> Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-rG6h6do+btXG9BjozWXA" Mime-Version: 1.0 Sender: stable-owner@vger.kernel.org List-ID: --=-rG6h6do+btXG9BjozWXA Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, 2015-05-15 at 17:53 +0200, Andi Kleen wrote: > >=20 > > v2.6.32.65:arch/x86/kernel/process_64.c:425: /* Must be after DS rel= oad */ > >=20 > > If this comment is correct then the patch will cause a regression for > > FPU state management. The comment was introduced by: >=20 > Yes I already stated before that these super-risky patches > are not stable material. [...] Which other patches do you include in that? Ben. --=20 Ben Hutchings It is impossible to make anything foolproof because fools are so ingenious. --=-rG6h6do+btXG9BjozWXA Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIVAwUAVVZc2+e/yOyVhhEJAQqhag/8CmQCqnTAFe74g7GzhKWFl6OgQtyXI+Tw 0gQt9pL8F4VOHUBJs8OdGPGOrK2WCq8941ipswxbW9qKt6zhfVMwkyY0W/moy3Tv hi0wvOHYN6jvktf1QK8QwZhpxDNrX9MsLIdxHGGUbaCkNB55eZSfJmJ9vGtQF8cx xtTgdXnXpvqhx2i/rILK9P2R1gGugRT6vfVwYhq219liAw/8bZH763fwYDZqO6ZE h0AOo4ysPc3YQ0bo15vE05Qj+QLfChK9b8R9kuVPxh02/J+5N65pB4XOwI007GBt FsrbQnya5wkk8VN3xVjWLHAaf0USlmkZ7Lz7PhFZYKf1sSW9ywV5/vKFRAzLlyZU 99WV3nXBX5BFQ4qz5003xAIXxnV9gFY+vA62SRieYmnUGF9hDhJo08+VB0mAv9y9 PEi8ILyKmnsiyxiUocgkwGAPiuIhwYJDAWHQrRy+/PtpCuu7GBPSMd6GvDtGToxC K5UCY2b6LpNDA01MCDxmPjol2pj124ZzLPSERubG+Ti0voi3IA5LYX7HH5LuqW8+ BaBFXt0+E5GVXPGltPXZq0SwiufXaVHQaGsPVa8gxtQeTgaiNag4PgMI20m+TO7O kqC8H8CebZB7xKL7H0TkgePwCI+pqlQhf2Qmvjr53XfbRoSEpbXwqY6SM31n3Kj4 KOJE58TrHLc= =CCPD -----END PGP SIGNATURE----- --=-rG6h6do+btXG9BjozWXA--