Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933295AbbHLASE (ORCPT ); Tue, 11 Aug 2015 20:18:04 -0400 Received: from smtp1.mail.ru ([94.100.179.111]:43291 "EHLO smtp1.mail.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932485AbbHLASB (ORCPT ); Tue, 11 Aug 2015 20:18:01 -0400 To: Andy Lutomirski Cc: Linux kernel From: Stas Sergeev Subject: [regression] x86/signal/64: Fix SS handling for signals delivered to 64-bit programs breaks dosemu Message-ID: <55CA90B4.2010205@list.ru> Date: Wed, 12 Aug 2015 03:17:56 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Mras: Ok Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 788 Lines: 17 Hi guys, I wonder how easily the include/uapi/* is being changed these days. The patch: http://lkml.kernel.org/r/405594361340a2ec32f8e2b115c142df0e180d8e.1426193719.git.luto@kernel.org breaks dosemu (and perhaps everyone else who used to restore the segregs by hands). And the fix involves both autoconf magic and run-time magic, so it is not even trivial. I realize this patch may be good to have in general, but breaking userspace without a single warning is a bit discouraging. Seems like the old "we don't break userspace" rule have gone. -- 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/