From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72835C169C4 for ; Wed, 30 Jan 2019 03:28:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4AC0220881 for ; Wed, 30 Jan 2019 03:28:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730084AbfA3D2X (ORCPT ); Tue, 29 Jan 2019 22:28:23 -0500 Received: from mga14.intel.com ([192.55.52.115]:63034 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727681AbfA3D2V (ORCPT ); Tue, 29 Jan 2019 22:28:21 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 29 Jan 2019 19:28:21 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,539,1539673200"; d="scan'208";a="122438444" Received: from shao2-debian.sh.intel.com (HELO [10.239.13.107]) ([10.239.13.107]) by orsmga003.jf.intel.com with ESMTP; 29 Jan 2019 19:28:18 -0800 Subject: Re: [kbuild-all] arch/x86/include/asm/cmpxchg.h:245:2: error: 'asm' operand has impossible constraints To: Borislav Petkov , Philip Li Cc: Ingo Molnar , Thomas Gleixner , kbuild test robot , kbuild-all@01.org, linux-kernel@vger.kernel.org References: <201901221204.ZqZgxRnA%fengguang.wu@intel.com> <20190122100815.GA26587@zn.tnic> <20190122111359.GA9888@intel.com> <20190122115544.GC26587@zn.tnic> From: Rong Chen Message-ID: <84021d10-0711-d94e-c2d3-92cc670d8a2f@intel.com> Date: Wed, 30 Jan 2019 11:28:40 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: <20190122115544.GC26587@zn.tnic> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 1/22/19 7:55 PM, Borislav Petkov wrote: > On Tue, Jan 22, 2019 at 07:13:59PM +0800, Philip Li wrote: >> thanks for the feedback, we will blacklist this. So may i understand based on >> the thread at https://lists.01.org/pipermail/kbuild-all/2018-December/056225.html, >> this is gcc-4.9 problem? > AFAICT, this triggers only on gcc-4.9, 32-bit build. Or do you have > other configurations which trigger it? Hi Boris, we have added it to the blacklist, and there's no other configuration found in the past reports. Best Regards, Rong Chen