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4396719: Mark Sweep stack overflow on deeply nested Object arrays

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Use an explicit stack for object arrays and process them in chunks.

Reviewed-by: iveresov, apetrusenko
This commit is contained in:
John Coomes 2010-03-03 14:48:26 -08:00
parent 5fdec09798
commit 4f82340476
26 changed files with 419 additions and 182 deletions
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3
hotspot/src/share/vm/memory/genMarkSweep.cpp
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@ -159,6 +159,7 @@ void GenMarkSweep::allocate_stacks() {
_preserved_oop_stack = NULL;
_marking_stack = new (ResourceObj::C_HEAP) GrowableArray<oop>(4000, true);
_objarray_stack = new (ResourceObj::C_HEAP) GrowableArray<ObjArrayTask>(50, true);
int size = SystemDictionary::number_of_classes() * 2;
_revisit_klass_stack = new (ResourceObj::C_HEAP) GrowableArray<Klass*>(size, true);
@ -194,7 +195,6 @@ void GenMarkSweep::allocate_stacks() {
void GenMarkSweep::deallocate_stacks() {
if (!UseG1GC) {
GenCollectedHeap* gch = GenCollectedHeap::heap();
gch->release_scratch();
@ -208,6 +208,7 @@ void GenMarkSweep::deallocate_stacks() {
}
delete _marking_stack;
delete _objarray_stack;
delete _revisit_klass_stack;
delete _revisit_mdo_stack;