From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2992432AbbEOWPb (ORCPT ); Fri, 15 May 2015 18:15:31 -0400 Received: from one.firstfloor.org ([193.170.194.197]:40897 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934155AbbEOWP3 (ORCPT ); Fri, 15 May 2015 18:15:29 -0400 Date: Sat, 16 May 2015 00:15:27 +0200 From: Andi Kleen To: Ben Hutchings Cc: Andi Kleen , Willy Tarreau , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Andy Lutomirski , Linus Torvalds , Ingo Molnar Subject: Re: [ 05/48] x86_64, switch_to(): Load TLS descriptors before switching DS and ES Message-ID: <20150515221527.GD19417@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> <1431723223.6315.124.camel@decadent.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1431723223.6315.124.camel@decadent.org.uk> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 15, 2015 at 09:53:43PM +0100, Ben Hutchings wrote: > On Fri, 2015-05-15 at 17:53 +0200, Andi Kleen wrote: > > > > > > v2.6.32.65:arch/x86/kernel/process_64.c:425: /* Must be after DS reload */ > > > > > > If this comment is correct then the patch will cause a regression for > > > FPU state management. The comment was introduced by: > > > > Yes I already stated before that these super-risky patches > > are not stable material. > [...] > > Which other patches do you include in that? Sorry I misspoke. Currently it's only that one. -Andi