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6956639: G1: assert(cached_ptr != card_ptr) failed: shouldn't be, concurrentG1Refine.cpp:307

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During concurrent refinment, filter cards in young regions after it has been determined that the region has been allocated from and the young type of the region has been set.

Reviewed-by: iveresov, tonyp, jcoomes
This commit is contained in:
John Cuthbertson 2010-07-19 11:06:34 -07:00
parent daf491a814
commit 5c3da1ee7e
5 changed files with 75 additions and 46 deletions
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7
hotspot/src/share/vm/gc_implementation/g1/heapRegion.hpp
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@ -252,7 +252,7 @@ class HeapRegion: public G1OffsetTableContigSpace {
// survivor
};
YoungType _young_type;
volatile YoungType _young_type;
int _young_index_in_cset;
SurvRateGroup* _surv_rate_group;
int _age_index;
@ -726,9 +726,12 @@ class HeapRegion: public G1OffsetTableContigSpace {
HeapWord*
object_iterate_mem_careful(MemRegion mr, ObjectClosure* cl);
// In this version - if filter_young is true and the region
// is a young region then we skip the iteration.
HeapWord*
oops_on_card_seq_iterate_careful(MemRegion mr,
FilterOutOfRegionClosure* cl);
FilterOutOfRegionClosure* cl,
bool filter_young);
// The region "mr" is entirely in "this", and starts and ends at block
// boundaries. The caller declares that all the contained blocks are