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author | Stephane Eranian <[email protected]> | 2013-06-04 17:44:26 +0200 |
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committer | Arnaldo Carvalho de Melo <[email protected]> | 2013-07-08 17:36:33 -0300 |
commit | d07f0b120642f442d81a61f68a9325fb7717004f (patch) | |
tree | 0a0c3e465c98439a4ab98bbdb21892422b994ca1 /tools/perf/scripts/python/check-perf-trace.py | |
parent | 079787f209416416383c74ea5d5044be2d586f5e (diff) |
perf stat: Avoid sending SIGTERM to random processes
This patch fixes a problem with perf stat whereby on termination it may
send a SIGTERM signal to random processes on systems with high PID
recycling. I got some actual bug reports on this.
There is race between the SIGCHLD and sig_atexit() handlers. This patch
addresses this problem by clearing child_pid in the SIGCHLD handler.
Signed-off-by: Stephane Eranian <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/20130604154426.GA2928@quad
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions