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8037112: gc/g1/TestHumongousAllocInitialMark.java caused SIGSEGV

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Reviewed-by: brutisso, mgerdin
This commit is contained in:
Per Lidén 2014-04-11 11:00:12 +02:00
parent d78446aa45
commit a3425b64f0
11 changed files with 89 additions and 10 deletions
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9
hotspot/src/share/vm/gc_implementation/g1/g1StringDedupQueue.cpp
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@ -35,6 +35,7 @@ const size_t G1StringDedupQueue::_max_cache_size = 0; // Max cache size p
G1StringDedupQueue::G1StringDedupQueue() :
_cursor(0),
_cancel(false),
_empty(true),
_dropped(0) {
_nqueues = MAX2(ParallelGCThreads, (size_t)1);
@ -55,11 +56,17 @@ void G1StringDedupQueue::create() {
void G1StringDedupQueue::wait() {
MonitorLockerEx ml(StringDedupQueue_lock, Mutex::_no_safepoint_check_flag);
while (_queue->_empty) {
while (_queue->_empty && !_queue->_cancel) {
ml.wait(Mutex::_no_safepoint_check_flag);
}
}
void G1StringDedupQueue::cancel_wait() {
MonitorLockerEx ml(StringDedupQueue_lock, Mutex::_no_safepoint_check_flag);
_queue->_cancel = true;
ml.notify();
}
void G1StringDedupQueue::push(uint worker_id, oop java_string) {
assert(SafepointSynchronize::is_at_safepoint(), "Must be at safepoint");
assert(worker_id < _queue->_nqueues, "Invalid queue");