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Message-Id: <1369525839-1261-1-git-send-email-dsahern@gmail.com> Date: Sat, 25 May 2013 17:50:39 -0600 From: David Ahern <dsahern@...il.com> To: acme@...stprotocols.net, linux-kernel@...r.kernel.org Cc: David Ahern <dsahern@...il.com> Subject: [PATCH] perf: reset SIGTERM handler in workload child process Jiri reported hanging perf tests on latest acme's perf/core and bisected it to 87f303a9f: [jolsa@...va2 perf]$ cat /proc/sys/kernel/perf_event_paranoid 1 [jolsa@...va2 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 <jolsa@...hat.com> Signed-off-by: David Ahern <dsahern@...il.com> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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