linux-kernel - Re: [PATCH v3 2/3] perf record: Propagate exit status of a command line workload

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Message-ID: <20140507173532.GV30445@twins.programming.kicks-ass.net>
Date:	Wed, 7 May 2014 19:35:32 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	Namhyung Kim <namhyung@...nel.org>, Jiri Olsa <jolsa@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Namhyung Kim <namhyung.kim@....com>
Subject: Re: [PATCH v3 2/3] perf record: Propagate exit status of a command
 line workload

On Wed, May 07, 2014 at 07:19:14PM +0200, Stephane Eranian wrote:
> > $ while :; do ./foo /bin/sleep 5 ; done
> >
> > and try and break out using ^C
> >
> What I usually do here is hit ^Z, then kill the job.
> But I agree it would be nicer to handle this case automatically.

So that used to work. And note that if you take out the signal(SIGINT,
SIG_IGN) from the proglet, it will actually propagate the SIGINT and
work as expected.

So its only because perf handles SIGINT -- to be able to finish the
stat/data record, that it doesn't. Which is why I propagated the signal
the child got killed with.

Now apparently someone broke that again.

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