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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 44483C433F5 for ; Sun, 13 Mar 2022 16:09:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231193AbiCMQLE (ORCPT ); Sun, 13 Mar 2022 12:11:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45648 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229543AbiCMQLD (ORCPT ); Sun, 13 Mar 2022 12:11:03 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4EB5726115 for ; Sun, 13 Mar 2022 09:09:55 -0700 (PDT) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: usama.anjum) with ESMTPSA id 4BB1A1F43C17 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1647187793; bh=vh+NG2iUylxYDfw9WycUZjfrDY36iF77QQdLF5UdAyM=; h=Date:Cc:From:To:Subject:From; b=SeTcLr79BCa7PZZATIf2LhPNSAWls7Id2+yXENWN0AVJLJzpIL/g7q+YVW+keWrr3 PoDCsFzFPt+bazK96yqkbUkhgjZ+nNEjxZ26epISuKGrjKAI0BaEylwVbjUjTd3S46 Zvx7tOCdsqaAYms8fERqKwbQrdx5TtD5sjCO/LcVXj8uu4lx9l8+MIa9r4J4Ki6GrE eX8YrdQwGMbDrohnRDqUIzTmAitkD9f/CB3EnY+epiFpPT/v9VjrMkALE+lKpv8N6N qSnTfbn+9OjSIStolMpXgc3SeE/CHbGveiX8p/Z66+frOyoiTVTid1V1juvny3nzAK JLq9AOc7dZ9nQ== Message-ID: <8907d4a9-2a3f-3442-2c5e-6c34f196d2a8@collabora.com> Date: Sun, 13 Mar 2022 21:09:44 +0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.6.2 Cc: usama.anjum@collabora.com, Shuah Khan , "kernelci@groups.io >> \"kernelci@groups.io\"" , Collabora Kernel ML Content-Language: en-US From: Muhammad Usama Anjum To: KERNEL SELFTEST FRAMEWORK Subject: [bug report] selftests: futex: warning during build with multiple jobs Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Hi, On linux-next cd tools/testing/selftests/futex && make clean -j 32 gives warning make[1]: warning: jobserver unavailable: using -j1. Add '+' to parent make rule. The full logs with with different reproduction steps can be found here: https://storage.staging.kernelci.org/next/master/next-20220310/x86_64/x86_64_defconfig+kselftest/gcc-10/logs/kselftest.log. Usually this type of warning shouldn't come when $MAKE is being used instead of make in Makefile. Maybe `define CLEAN` inside override construct defined in parent makefile is not getting jobsever information when child make process executes. I've enabled verbose mode and tried with other makefile flags (-p, -d etc) as well. Documentation mentions that if make is unable to identify the child process correctly, this warning will appear. Please share if you have any thoughts on it. -- Muhammad Usama Anjum