From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752130AbdCHPjQ (ORCPT ); Wed, 8 Mar 2017 10:39:16 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:51916 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750778AbdCHPjN (ORCPT ); Wed, 8 Mar 2017 10:39:13 -0500 Subject: Re: [PATCH 6/6] sysctl: Add global tunable mt_page_copy To: kbuild test robot , Anshuman Khandual References: <201702172358.xrHUyT1e%fengguang.wu@intel.com> Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mhocko@suse.com, vbabka@suse.cz, mgorman@suse.de, minchan@kernel.org, aneesh.kumar@linux.vnet.ibm.com, bsingharora@gmail.com, srikar@linux.vnet.ibm.com, haren@linux.vnet.ibm.com, jglisse@redhat.com, dave.hansen@intel.com, dan.j.williams@intel.com, zi.yan@cs.rutgers.edu From: Anshuman Khandual Date: Wed, 8 Mar 2017 21:07:17 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 MIME-Version: 1.0 In-Reply-To: <201702172358.xrHUyT1e%fengguang.wu@intel.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-TM-AS-MML: disable x-cbid: 17030815-0012-0000-0000-000003C75C43 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17030815-0013-0000-0000-00001B4CB3D7 Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-03-08_11:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1702020001 definitions=main-1703080126 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/17/2017 09:00 PM, kbuild test robot wrote: > Hi Zi, > > [auto build test ERROR on linus/master] > [also build test ERROR on v4.10-rc8 next-20170217] > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] > > url: https://github.com/0day-ci/linux/commits/Anshuman-Khandual/Enable-parallel-page-migration/20170217-200523 > config: i386-randconfig-a0-02131010 (attached as .config) > compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 Though I dont have the same compiler, I am unable to reproduce this build failure exactly. The build fails but for a different symbol. I have the following gcc version but does it really make a difference with respect to finding the symbol etc ? gcc (Ubuntu 4.9.2-10ubuntu13) 4.9.2 mm/memory.c: In function ‘copy_pmd_range’: mm/memory.c:1002:3: error: implicit declaration of function ‘pmd_related’ [-Werror=implicit-function-declaration] if (pmd_related(*src_pmd)) { ^ cc1: some warnings being treated as errors scripts/Makefile.build:294: recipe for target 'mm/memory.o' failed