src/share/vm/gc/g1/g1RemSet.cpp

*** 107,117 ****
    HeapRegionDCTOC cl(_g1h, r, _oc,
        CardTableModRefBS::Precise);
  
    // Set the "from" region in the closure.
    _oc->set_region(r);
!   MemRegion card_region(_bot->address_for_index(index), G1BlockOffsetTable::N_words);
    MemRegion pre_gc_allocated(r->bottom(), r->scan_top());
    MemRegion mr = pre_gc_allocated.intersection(card_region);
    if (!mr.is_empty() && !_ct_bs->is_card_claimed(index)) {
      // We make the card as "claimed" lazily (so races are possible
      // but they're benign), which reduces the number of duplicate
--- 107,117 ----
    HeapRegionDCTOC cl(_g1h, r, _oc,
        CardTableModRefBS::Precise);
  
    // Set the "from" region in the closure.
    _oc->set_region(r);
!   MemRegion card_region(_bot->address_for_index(index), BOTConstants::N_words);
    MemRegion pre_gc_allocated(r->bottom(), r->scan_top());
    MemRegion mr = pre_gc_allocated.intersection(card_region);
    if (!mr.is_empty() && !_ct_bs->is_card_claimed(index)) {
      // We make the card as "claimed" lazily (so races are possible
      // but they're benign), which reduces the number of duplicate