diff options
| author | Peter Zijlstra <[email protected]> | 2017-01-31 11:27:10 +0100 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2017-02-10 09:04:50 +0100 |
| commit | 451d24d1e5f40bad000fa9abe36ddb16fc9928cb (patch) | |
| tree | 532b1fe208f3223a3b447f535f4a761f08c2527a /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | 53e74a112ce5c1c9b6a6923bdd6612133625d579 (diff) | |
perf/core: Fix crash in perf_event_read()
Alexei had his box explode because doing read() on a package
(rapl/uncore) event that isn't currently scheduled in ends up doing an
out-of-bounds load.
Rework the code to more explicitly deal with event->oncpu being -1.
Reported-by: Alexei Starovoitov <[email protected]>
Tested-by: Alexei Starovoitov <[email protected]>
Tested-by: David Carrillo-Cisneros <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Fixes: d6a2f9035bfc ("perf/core: Introduce PMU_EV_CAP_READ_ACTIVE_PKG")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions