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7103665: HeapWord*ParallelScavengeHeap::failed_mem_allocate(unsigned long,bool)+0x97

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Make sure that MutableNUMASpace::ensure_parsability() only calls CollectedHeap::fill_with_object() with valid sizes and make sure CollectedHeap::filler_array_max_size() returns a value that can be converted to an int without overflow

Reviewed-by: azeemj, jmasa, iveresov
This commit is contained in:
Bengt Rutisson 2012-03-23 15:28:24 +01:00
parent 450d6e8d9a
commit efa036748b
3 changed files with 35 additions and 28 deletions
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6
hotspot/src/share/vm/gc_interface/collectedHeap.hpp
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@ -128,7 +128,6 @@ class CollectedHeap : public CHeapObj {
// Reinitialize tlabs before resuming mutators.
virtual void resize_all_tlabs();
protected:
// Allocate from the current thread's TLAB, with broken-out slow path.
inline static HeapWord* allocate_from_tlab(Thread* thread, size_t size);
static HeapWord* allocate_from_tlab_slow(Thread* thread, size_t size);
@ -169,7 +168,6 @@ class CollectedHeap : public CHeapObj {
// Filler object utilities.
static inline size_t filler_array_hdr_size();
static inline size_t filler_array_min_size();
static inline size_t filler_array_max_size();
DEBUG_ONLY(static void fill_args_check(HeapWord* start, size_t words);)
DEBUG_ONLY(static void zap_filler_array(HeapWord* start, size_t words, bool zap = true);)
@ -197,6 +195,10 @@ class CollectedHeap : public CHeapObj {
G1CollectedHeap
};
static inline size_t filler_array_max_size() {
return _filler_array_max_size;
}
virtual CollectedHeap::Name kind() const { return CollectedHeap::Abstract; }
/**