From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.kundenserver.de ([212.227.17.13]:55278 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750837AbcGRMxG (ORCPT ); Mon, 18 Jul 2016 08:53:06 -0400 From: Arnd Bergmann Subject: Re: running "make dtbs" for test builds Date: Mon, 18 Jul 2016 14:52:32 +0200 Message-ID: <1725840.UfqkDuJ4HB@wuerfel> In-Reply-To: <20160718124122.GA30497@wfg-t540p.sh.intel.com> References: <8924490.SntxSU2FOC@wuerfel> <20160718124122.GA30497@wfg-t540p.sh.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kbuild-owner@vger.kernel.org List-ID: To: linux-arm-kernel@lists.infradead.org Cc: Fengguang Wu , devicetree@vger.kernel.org, Thierry Reding , linux-kernel@vger.kernel.org, linux-kbuild On Monday, July 18, 2016 8:41:22 PM CEST Fengguang Wu wrote: > Hi Arnd, > > On Mon, Jul 18, 2016 at 02:01:17PM +0200, Arnd Bergmann wrote: > >Hi Fengguang, > > > >I've recently run into a number of cases in which I pulled a branch that > >was building fine with "make vmlinux", but that failed for "make dtbs", > >and I wonder if this is something that could be checked by the kbuild > >test robot so we catch it earlier. > > We initially run "make" without vmlinux, however during bisect more > specific make targets will be used to speed it up. To do that it's > necessary to know the regex patterns of "make dtbs" error messages, > so that they can be correctly bisected. > > Can you give some "make dtbs" error messages or patterns? > A typical error looks like Error: arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts:252.1-18 Label or path usb_power_supply not found FATAL ERROR: Syntax error parsing input tree scripts/Makefile.lib:312: recipe for target 'arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dtb' failed make[3]: *** [arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dtb] Error 1 There should be almost 100% correlation between seeing "arch/${ARCH}/boot/dts/" in stderr and having a problem in the "make dtbs" stage. Arnd