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6423256: GC stacks should use a better data structure

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6942771: SEGV in ParScanThreadState::take_from_overflow_stack

Reviewed-by: apetrusenko, ysr, pbk
This commit is contained in:
John Coomes 2010-09-28 15:56:15 -07:00
parent aff36499e7
commit 1cdd538ea5
30 changed files with 718 additions and 402 deletions
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13
hotspot/src/share/vm/gc_implementation/shared/markSweep.hpp
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@ -104,23 +104,22 @@ class MarkSweep : AllStatic {
friend class KeepAliveClosure;
friend class VM_MarkSweep;
friend void marksweep_init();
friend class DataLayout;
//
// Vars
//
protected:
// Traversal stacks used during phase1
static GrowableArray<oop>* _marking_stack;
static GrowableArray<ObjArrayTask>* _objarray_stack;
static Stack<oop> _marking_stack;
static Stack<ObjArrayTask> _objarray_stack;
// Stack for live klasses to revisit at end of marking phase
static GrowableArray<Klass*>* _revisit_klass_stack;
static Stack<Klass*> _revisit_klass_stack;
// Set (stack) of MDO's to revisit at end of marking phase
static GrowableArray<DataLayout*>* _revisit_mdo_stack;
static Stack<DataLayout*> _revisit_mdo_stack;
// Space for storing/restoring mark word
static GrowableArray<markOop>* _preserved_mark_stack;
static GrowableArray<oop>* _preserved_oop_stack;
static Stack<markOop> _preserved_mark_stack;
static Stack<oop> _preserved_oop_stack;
static size_t _preserved_count;
static size_t _preserved_count_max;
static PreservedMark* _preserved_marks;