Message-ID: <1367222415.4656.61.camel@marge.simpson.net>
Subject: perf: report loops endlessly if record was killed via SIGTERM
From: Mike Galbraith <bitbucket@online.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Date: Mon, 29 Apr 2013 10:00:15 +0200
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Mime-Version: 1.0
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 863
Lines: 22

Boring notabug report, but..

(Dr. Dr., perf acts all dainbramaged when you shoot it in the head)

reproducer: perf record -a -g& sleep 1;whatever;killall perf

Discovered because AIM7 needs input, and does not run properly when
profiled via the more conventional perf record -a -g -- ./multitask -nl
-f.  Ergo, start perf record, run AIM7, kill perf.  Say SIGINT instead,
and it works as expected.  SIGTERM leaves perf.data in a bad state that
report can't deal with, but it'll happily keep trying forever.

Only mentioned because some other user might try to workaround input
nogo thingy and meet the same.

	-Mike

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/