Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753096AbaDMB3d (ORCPT ); Sat, 12 Apr 2014 21:29:33 -0400 Received: from mail-qg0-f41.google.com ([209.85.192.41]:56350 "EHLO mail-qg0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750914AbaDMB3b (ORCPT ); Sat, 12 Apr 2014 21:29:31 -0400 MIME-Version: 1.0 In-Reply-To: References: <53483487.6030103@zytor.com> <53485BB8.1000106@mit.edu> <53485D95.9030301@zytor.com> <1397345179.1772.105823721.224E1140@webmail.messagingengine.com> <5349CCE3.3000003@zytor.com> <1397346568.13490.105824481.72FA2B8D@webmail.messagingengine.com> <5349D44C.9070105@zytor.com> From: Andy Lutomirski Date: Sat, 12 Apr 2014 18:29:11 -0700 Message-ID: Subject: Re: [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels To: "H. Peter Anvin" Cc: Alexander van Heukelum , Brian Gerst , Ingo Molnar , Linux Kernel Mailing List , Linus Torvalds , Thomas Gleixner , stable@jasper.es Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Apr 12, 2014 at 6:25 PM, Andy Lutomirski wrote: > On Sat, Apr 12, 2014 at 5:03 PM, H. Peter Anvin wrote: >> A signal arriving while in the user space trampoline could seriously >> complicate life. > > Agreed. Maybe I don't agree. Have signals ever worked sensibly when delivered to a task running on an unexpected stack or code segment? --Andy -- 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/