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 X-Spam-Level: X-Spam-Status: No, score=-3.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5988AC43615 for ; Mon, 20 Aug 2018 16:16:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1638A21731 for ; Mon, 20 Aug 2018 16:16:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="WEWJz4iX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1638A21731 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727485AbeHTTce (ORCPT ); Mon, 20 Aug 2018 15:32:34 -0400 Received: from mail.kernel.org ([198.145.29.99]:34736 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726024AbeHTTcc (ORCPT ); Mon, 20 Aug 2018 15:32:32 -0400 Received: from jouet.infradead.org (unknown [179.97.41.186]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BEB602172C; Mon, 20 Aug 2018 16:16:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1534781777; bh=B3YRVqir/STv4KGVF2CPdPMg7IQUK2Pn2zkMB3VzCfo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WEWJz4iXI9sBn4IffvXvK4u7TlxgiuCheTlC07AtlOvsIoG93+rJLikEsKMsHfK1J i/ZlcLVbMqCgOWUTFl6CmE8ZjpFA4/HeMctqVi7aCNxQ3gKfy6aKl/Q97I4w+WoXrL 2Xs1FJUISkhPbFIembBmJN6MTZJG8lQIc8F3UKOE= From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Rasmus Villemoes , Alexander Shishkin , Namhyung Kim , Peter Zijlstra , Arnaldo Carvalho de Melo Subject: [PATCH 01/21] perf tools: Disable parallelism for 'make clean' Date: Mon, 20 Aug 2018 13:15:42 -0300 Message-Id: <20180820161602.6830-2-acme@kernel.org> X-Mailer: git-send-email 2.14.4 In-Reply-To: <20180820161602.6830-1-acme@kernel.org> References: <20180820161602.6830-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rasmus Villemoes The Yocto build system does a 'make clean' when rebuilding due to changed dependencies, and that consistently fails for me (causing the whole BSP build to fail) with errors such as | find: '[...]/perf/1.0-r9/perf-1.0/plugin_mac80211.so': No such file or directory | find: '[...]/perf/1.0-r9/perf-1.0/plugin_mac80211.so': No such file or directory | find: find: '[...]/perf/1.0-r9/perf-1.0/libtraceevent.a''[...]/perf/1.0-r9/perf-1.0/libtraceevent.a': No such file or directory: No such file or directory | [...] | find: cannot delete '/mnt/xfs/devel/pil/yocto/tmp-glibc/work/wandboard-oe-linux-gnueabi/perf/1.0-r9/perf-1.0/util/.pstack.o.cmd': No such file or directory Apparently (despite the comment), 'make clean' ends up launching multiple sub-makes that all want to remove the same things - perhaps this only happens in combination with a O=... parameter. In any case, we don't lose much by explicitly disabling the parallelism for the clean target, and it makes automated builds much more reliable. Signed-off-by: Rasmus Villemoes Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20180705131527.19749-1-linux@rasmusvillemoes.dk Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 225454416ed5..7902a5681fc8 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -84,10 +84,10 @@ endif # has_clean endif # MAKECMDGOALS # -# The clean target is not really parallel, don't print the jobs info: +# Explicitly disable parallelism for the clean target. # clean: - $(make) + $(make) -j1 # # The build-test target is not really parallel, don't print the jobs info, -- 2.14.4