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| author | David Ahern <dsahern@gmail.com> | 2013-05-25 17:50:39 -0600 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-05-30 14:34:56 +0300 |
| commit | 0817df08d31cd961be225e601d8ec92acac62027 (patch) | |
| tree | 304ffc700d5a911fb5e01f1b2445f2810bcad186 | |
| parent | fd851780e61ac36e8d59fe87cca01a2e673930ff (diff) | |
| download | linux-0817df08d31cd961be225e601d8ec92acac62027.tar.gz linux-0817df08d31cd961be225e601d8ec92acac62027.tar.bz2 linux-0817df08d31cd961be225e601d8ec92acac62027.zip | |
perf evlist: Reset SIGTERM handler in workload child process
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>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1369525839-1261-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/evlist.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index f7c727801aab..99b43dd18c57 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); |