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7035144: G1: nightly failure: Non-dirty cards in region that should be dirty (failures still exist...)

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We should only undirty cards after we decide that they are not on a young region, not before. The fix also includes improvements to the verify_dirty_region() method which print out which cards were not found dirty.

Reviewed-by: johnc, brutisso
This commit is contained in:
Antonios Printezis 2011-04-29 14:59:04 -04:00
parent 8c04c76193
commit 10f6cc7fc3
9 changed files with 118 additions and 95 deletions
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5
hotspot/src/share/vm/memory/cardTableModRefBS.hpp
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@ -475,7 +475,10 @@ public:
void verify();
void verify_guard();
void verify_clean_region(MemRegion mr) PRODUCT_RETURN;
// val_equals -> it will check that all cards covered by mr equal val
// !val_equals -> it will check that all cards covered by mr do not equal val
void verify_region(MemRegion mr, jbyte val, bool val_equals) PRODUCT_RETURN;
void verify_not_dirty_region(MemRegion mr) PRODUCT_RETURN;
void verify_dirty_region(MemRegion mr) PRODUCT_RETURN;
static size_t par_chunk_heapword_alignment() {