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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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4
hotspot/src/share/vm/gc_implementation/shared/markSweep.hpp
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@ -110,8 +110,9 @@ class MarkSweep : AllStatic {
// Vars
//
protected:
// Traversal stack used during phase1
// Traversal stacks used during phase1
static GrowableArray<oop>* _marking_stack;
static GrowableArray<ObjArrayTask>* _objarray_stack;
// Stack for live klasses to revisit at end of marking phase
static GrowableArray<Klass*>* _revisit_klass_stack;
// Set (stack) of MDO's to revisit at end of marking phase
@ -188,6 +189,7 @@ class MarkSweep : AllStatic {
template <class T> static inline void mark_and_follow(T* p);
// Check mark and maybe push on marking stack
template <class T> static inline void mark_and_push(T* p);
static inline void push_objarray(oop obj, size_t index);
static void follow_stack(); // Empty marking stack.