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authorDavid Ahern <dsahern@gmail.com>2013-05-26 03:50:39 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-05-30 15:34:56 +0400
commit0817df08d31cd961be225e601d8ec92acac62027 (patch)
tree304ffc700d5a911fb5e01f1b2445f2810bcad186 /tools
parentfd851780e61ac36e8d59fe87cca01a2e673930ff (diff)
downloadlinux-0817df08d31cd961be225e601d8ec92acac62027.tar.xz
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>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/evlist.c2
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);