From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758302Ab3EYXur (ORCPT ); Sat, 25 May 2013 19:50:47 -0400 Received: from mail-pa0-f49.google.com ([209.85.220.49]:64971 "EHLO mail-pa0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758177Ab3EYXup (ORCPT ); Sat, 25 May 2013 19:50:45 -0400 From: David Ahern To: acme@ghostprotocols.net, linux-kernel@vger.kernel.org Cc: David Ahern Subject: [PATCH] perf: reset SIGTERM handler in workload child process Date: Sat, 25 May 2013 17:50:39 -0600 Message-Id: <1369525839-1261-1-git-send-email-dsahern@gmail.com> X-Mailer: git-send-email 1.7.10.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Jiri reported hanging perf tests on latest acme's perf/core and bisected it to 87f303a9f: [jolsa@krava2 perf]$ cat /proc/sys/kernel/perf_event_paranoid 1 [jolsa@krava2 perf]$ ./perf record -C 0 kill Error: You may not have permission to collect %sstats. Consider tweaking /proc/sys/kernel/perf_event_paranoid: -1 - Not paranoid at all 0 - Disallow raw tracepoint access for unpriv 1 - Disallow cpu events for unpriv 2 - Disallow kernel profiling for unpriv Need to let default handling kickin for workload process. Reported-by: Jiri Olsa Signed-off-by: David Ahern --- tools/perf/util/evlist.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index f7c7278..99b43dd 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -776,6 +776,8 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, if (pipe_output) dup2(2, 1); + signal(SIGTERM, SIG_DFL); + close(child_ready_pipe[0]); close(go_pipe[1]); fcntl(go_pipe[0], F_SETFD, FD_CLOEXEC); -- 1.7.10.1