From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932179AbcGOHHe (ORCPT ); Fri, 15 Jul 2016 03:07:34 -0400 Received: from mout.kundenserver.de ([217.72.192.73]:55800 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932142AbcGOHH3 (ORCPT ); Fri, 15 Jul 2016 03:07:29 -0400 From: Arnd Bergmann To: linaro-kernel@lists.linaro.org Cc: Build bot for Mark Brown , kernel-build-reports@lists.linaro.org, linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org Subject: Re: v4.4.12-rt20 build: 0 failures 5 warnings (v4.4.12-rt20) Date: Fri, 15 Jul 2016 09:07:20 +0200 Message-ID: <4402302.GjsxlnvCX4@wuerfel> User-Agent: KMail/5.1.3 (Linux/4.4.0-28-generic; KDE/5.18.0; x86_64; ; ) In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Provags-ID: V03:K0:qsSHqJYRrmaGQD2TBSBKiPCn6qGXo1yfM1R8PUiULK1vBMFpsia hdy2T+kTqgfh6SRGqusPi6r1BoAhWkOILx6IWFldNX2ozsOh+G4wrT62hf5IOq1AsSzJ6nY 5/Wg0bUjoXBmeGHeLY3MgiuCmzhBDvYnmc81I2XjhF2X0jbSCWJzMQPzfRDPLqYxqcxhUm3 tdei55Dmvp3MqVrYE/Vhg== X-UI-Out-Filterresults: notjunk:1;V01:K0:u0w9Jl++GaY=:xEs9Xb5dOsbPg+60sLMoCD w1lx0dGepzydkWdEGl2YC/CBBOnsibCbfUSAG/e27wnpPrcbPtiN4lDQ6+6CvWPNDpHWlJSzs EWXP+f7mRq9fckoHCfgk7Cm7E2F2WHE6oOtc8jx7XfLowXjQ8evgt5UHctc9YuklDoC4KgC8y RKq4p74J8/Hesx4tZXqpxBQ5StepsUFJBz2ieXgUBr0JRKxnrXn5KtGZqt946WD3CIWbruVMt qqX4kWoOXv9/bCChbRG96URrWPqDnXGn55K1IP4+Xfk6Xgfc++1QdFwPMXQICKt9gE7vLRsp8 17z/dEJoSucZs36P78r28yg2pu+ZzVaubiPuIr+C4B30hiUw3MtdcLD01W80nDpZTBhCJ5pWU 6C9R7+/zRztC26YVLPUdRghaDgznzcVwsp6j1aIXw61PDmRgWy270frcUCq2tW7qyFKXUW6+O Klb5hawvmavfszOZS5CHhIGxoo3uuwwRKb9wf1eRXQQ2SOcQfdgvm426vVI3XbLPpit/rYb2P MCjIuBczAFXScFJcsMM7q0S9u3FQrjIoBA981zY75fpASvYQ32KBpy72QBbnQnnhg80o3pqDE 70liphm85XXkfW83fEgMNq7E73vt/Ga37dIu5PtpsditEBLdsKvdAqTNG3QElHc9K/K4oVw/x SJoxDKrU+JfUUrrPhizvPRhH5LHp/GHDxRjaFl9h5ZE+8Yb4wbSx+uppiwwNGaDpWtsWCKkuW q/+/uWJJgXkFDboV Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Friday, July 15, 2016 5:25:17 AM CEST Build bot for Mark Brown wrote: > Tree/Branch: v4.4.12-rt20 > Git describe: v4.4.12-rt20 > Commit: b4059f165a Linux 4.4.12-rt20 > > Build Time: 79 min 2 sec > > Passed: 9 / 9 (100.00 %) > Failed: 0 / 9 ( 0.00 %) > > Errors: 0 > Warnings: 5 > Section Mismatches: 0 > > ------------------------------------------------------------------------------- > defconfigs with issues (other than build errors): > 1 warnings 0 mismatches : arm64-allnoconfig > 2 warnings 0 mismatches : arm64-allmodconfig > 1 warnings 0 mismatches : arm-multi_v5_defconfig > 2 warnings 0 mismatches : arm-multi_v7_defconfig > 1 warnings 0 mismatches : x86_64-defconfig > 3 warnings 0 mismatches : arm-allmodconfig > 1 warnings 0 mismatches : arm-allnoconfig > 1 warnings 0 mismatches : x86_64-allnoconfig > 2 warnings 0 mismatches : arm64-defconfig > > ------------------------------------------------------------------------------- Cc linux-rt-users@vger.kernel.org, let's have a look at the individual warnings: > Warnings Summary: 5 > 9 ../kernel/sched/core.c:3473:12: warning: 'preemptible_lazy' defined but not used [-Wunused-function] This was introduced by the rt patchset, I'd suggest adding a fix to the next v4.4-rt release. This is almost certainly harmless. > 2 ../include/linux/spinlock.h:246:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] I'm missing context here, so I don't know what caused it, but the warning is not present in v4.4.12 (without -rt), so it's worth looking into. It happens for both arm-multi_v7_defconfig and arm64-defconfig. > 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=] > 1 ../drivers/xen/balloon.c:155:13: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function] > 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] These three are present in v4.4.12 and only got fixed upstream later. I have some hope that the fixes will make it into stable kernels eventually. The "frame size" warnings are a side-effect of a gcc problem with gcov profiling, and the xen warning was introduced by a stable backport patch. Arnd