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hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/vmCMSOperations.cpp
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rev 6902 : 8062036: ConcurrentMarkThread::slt may be invoked before ConcurrentMarkThread::makeSurrogateLockerThread causing intermittent crashes
Summary: Suppress gc_alot during VM init, improve error for SLT uninitialized.
Reviewed-by: jmasa, brutisso, tschatzl
@@ -48,12 +48,16 @@
// Methods in abstract class VM_CMS_Operation
//////////////////////////////////////////////////////////
void VM_CMS_Operation::acquire_pending_list_lock() {
// The caller may block while communicating
// with the SLT thread in order to acquire/release the PLL.
- ConcurrentMarkSweepThread::slt()->
- manipulatePLL(SurrogateLockerThread::acquirePLL);
+ SurrogateLockerThread* slt = ConcurrentMarkSweepThread::slt();
+ if (slt != NULL) {
+ slt->manipulatePLL(SurrogateLockerThread::acquirePLL);
+ } else {
+ SurrogateLockerThread::report_missing_slt();
+ }
}
void VM_CMS_Operation::release_and_notify_pending_list_lock() {
// The caller may block while communicating
// with the SLT thread in order to acquire/release the PLL.
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