From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932454AbcFCKla (ORCPT ); Fri, 3 Jun 2016 06:41:30 -0400 Received: from mail-lf0-f47.google.com ([209.85.215.47]:33645 "EHLO mail-lf0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932103AbcFCKl3 (ORCPT ); Fri, 3 Jun 2016 06:41:29 -0400 Date: Fri, 3 Jun 2016 13:41:18 +0300 From: Cyrill Gorcunov To: Dmitry Safonov Cc: linux-kernel@vger.kernel.org, mingo@redhat.com, luto@amacapital.net, tglx@linutronix.de, hpa@zytor.com, x86@kernel.org, 0x7f454c46@gmail.com, oleg@redhat.com, xemul@virtuozzo.com, khorenko@virtuozzo.com, Andy Lutomirski Subject: Re: [PATCH 5/6] x86/ptrace: down with test_thread_flag(TIF_IA32) Message-ID: <20160603104118.GE2431@uranus> References: <1464786697-20639-1-git-send-email-dsafonov@virtuozzo.com> <1464786697-20639-6-git-send-email-dsafonov@virtuozzo.com> <20160603095748.GC2431@uranus> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.6.1 (2016-04-27) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jun 03, 2016 at 01:27:33PM +0300, Dmitry Safonov wrote: > > > > Looks reasonable! Still if cs has been changed to non-compat > > selector and we now return 64bit registers set, won't it > > cause problems for old tools? I suspect it should not but > > still. > > > > Thanks! Hmm, strace works fine - I'll check gdb to be sure. > What else could be bothered by this? None I know of at the moment.