From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751632AbaEGRJb (ORCPT ); Wed, 7 May 2014 13:09:31 -0400 Received: from terminus.zytor.com ([198.137.202.10]:51318 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750884AbaEGRJ3 (ORCPT ); Wed, 7 May 2014 13:09:29 -0400 Message-ID: <536A68B1.6070500@zytor.com> Date: Wed, 07 May 2014 10:09:05 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: Linus Torvalds , Sven Joachim CC: Alexandre Julliard , Brian Gerst , Ingo Molnar , Linux Kernel Mailing List , Thomas Gleixner , stable , "H. Peter Anvin" Subject: Re: [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels References: <87k3aspd1h.fsf@wine.dyndns.org> <87zjiuymiu.fsf@turtle.gmx.de> In-Reply-To: X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/07/2014 09:57 AM, Linus Torvalds wrote: > > Afaik, 16-bit programs under wine already need > > echo 0 > /proc/sys/vm/mmap_min_addr > > because they want to map things at address 0, so this isn't a new concept. > I think that applies to DOSEMU, but not to Wine. Sven: if you have the ability to build your own kernel, could you also try the "x86/espfix" branch of the git tree: https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/ (clone URLs:) git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git ... to make sure the proper solution works for you? I'm somewhat curious if this program you have is actually a 32-bit program or if it is really a 16-bit program wrapped in a 32-bit installer of some kind. Hard to know without seeing the program in question. -hpa