Messages in this thread Patch in this message | | | From | David Ahern <> | Subject | [PATCH] perf: reset SIGTERM handler in workload child process | Date | Sat, 25 May 2013 17:50:39 -0600 |
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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 <jolsa@redhat.com> Signed-off-by: David Ahern <dsahern@gmail.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
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