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8145315: VM crashes in print_task_time_stamps()

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Reviewed-by: jwilhelm, jmasa
This commit is contained in:
Bengt Rutisson 2015-12-16 09:24:48 +01:00
parent 6996edcbb5
commit bd183dc526
1 changed files with 5 additions and 1 deletions
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6
hotspot/src/share/vm/gc/parallel/gcTaskThread.cpp
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@ -152,11 +152,15 @@ void GCTaskThread::run() {
if (log_is_enabled(Debug, gc, task, time)) { if (log_is_enabled(Debug, gc, task, time)) {
timer.update(); timer.update();
GCTaskTimeStamp* time_stamp = time_stamp_at(_time_stamp_index++); GCTaskTimeStamp* time_stamp = time_stamp_at(_time_stamp_index);
time_stamp->set_name(name); time_stamp->set_name(name);
time_stamp->set_entry_time(entry_time); time_stamp->set_entry_time(entry_time);
time_stamp->set_exit_time(timer.ticks()); time_stamp->set_exit_time(timer.ticks());
// Update the index after we have set up the entry correctly since
// GCTaskThread::print_task_time_stamps() may read this value concurrently.
_time_stamp_index++;
} }
} else { } else {
// idle tasks complete outside the normal accounting // idle tasks complete outside the normal accounting