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From: Jiri Olsa <jolsa@redhat.com>
To: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Namhyung Kim <namhyung@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] perf: disable parallelism for 'make clean'
Date: Thu, 5 Jul 2018 15:49:55 +0200	[thread overview]
Message-ID: <20180705134955.GB3686@krava> (raw)
In-Reply-To: <20180705131527.19749-1-linux@rasmusvillemoes.dk>

On Thu, Jul 05, 2018 at 03:15:27PM +0200, Rasmus Villemoes wrote:
> 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 <linux@rasmusvillemoes.dk>

Acked-by: Jiri Olsa <jolsa@kernel.org>

thanks,
jirka

  reply	other threads:[~2018-07-05 13:50 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-05 13:15 [PATCH] perf: disable parallelism for 'make clean' Rasmus Villemoes
2018-07-05 13:49 ` Jiri Olsa [this message]
2018-08-15  7:30   ` Rasmus Villemoes
2018-08-15 19:33     ` Arnaldo Carvalho de Melo
2018-08-23  8:37 ` [tip:perf/urgent] perf tools: Disable " tip-bot for Rasmus Villemoes

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