Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751074AbdISC3V (ORCPT ); Mon, 18 Sep 2017 22:29:21 -0400 Received: from mga05.intel.com ([192.55.52.43]:42617 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750895AbdISC3U (ORCPT ); Mon, 18 Sep 2017 22:29:20 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.42,415,1500966000"; d="scan'208";a="1196544074" Date: Tue, 19 Sep 2017 10:31:12 +0800 From: Philip Li To: Linus Torvalds Cc: kbuild test robot , LKML Subject: Re: [linus:master] BUILD REGRESSION 2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e Message-ID: <20170919023112.GA18860@intel.com> References: <59be0fe7.rWX1qt+B4E+6WufZ%fengguang.wu@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2555 Lines: 57 On Sun, Sep 17, 2017 at 08:31:56AM -0700, Linus Torvalds wrote: > Fengguang, > it looks like the kernel build robot _only_ tests the actual rc > kernels, and doesn't bisect down where the error started. hi Linus, the robot will also bisect down the error if issue is found on linus repo. The regression below is reported at below mail, with a reminder to author https://lists.01.org/pipermail/kbuild-all/2017-September/038295.html Hi Felix, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e commit: 70539bd79500245cbb4c7af00572fcce540d0105 drm/amd: Update MEC HQD loading code for KFD date: 5 weeks ago config: alpha-allmodconfig (attached as .config) compiler: alpha-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 70539bd79500245cbb4c7af00572fcce540d0105 # save the attached .config to linux build tree make.cross ARCH=alpha All errors (new ones prefixed by >>): In file included from include/linux/mmu_context.h:4:0, from drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h:29, from drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c:23: arch/alpha/include/asm/mmu_context.h: In function 'ev5_switch_mm': >> arch/alpha/include/asm/mmu_context.h:160:2: error: implicit declaration of function 'task_thread_info' [-Werror=implicit-function-declaration] task_thread_info(next)->pcb.asn = mmc & HARDWARE_ASN_MASK; ^~~~~~~~~~~~~~~~ >> arch/alpha/include/asm/mmu_context.h:160:24: error: invalid type argument of '->' (have 'int') task_thread_info(next)->pcb.asn = mmc & HARDWARE_ASN_MASK; ^~ arch/alpha/include/asm/mmu_context.h: In function 'init_new_context': arch/alpha/include/asm/mmu_context.h:238:24: error: invalid type argument of '->' (have 'int') task_thread_info(tsk)->pcb.ptbr > > Any change that when it notices an error, it would bisect it, like it > does for linux-next? > > Linus > > On Sat, Sep 16, 2017 at 11:02 PM, kbuild test robot > wrote: > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > > 2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e Linux 4.14-rc1 > > > > arch/alpha/include/asm/mmu_context.h:160:24: error: invalid type argument of '->' (have 'int') > ... >