src/share/vm/gc/g1/g1CardLiveData.cpp

rev 10807 : 8153843: G1CardLiveDataHelper incorrectly sets next_live_bytes on dead humongous regions
Reviewed-by:

*** 204,215 ****
--- 204,221 ----
      if (ntams <= start) {
        // Skip empty regions.
        return 0;
      }
      if (hr->is_humongous()) {
+       HeapRegion* start_region = hr->humongous_start_region();
+       if (mark_bitmap->isMarked(start_region->bottom())) {
          mark_card_bitmap_range(start, hr->top());
          return pointer_delta(hr->top(), start, 1);
+       } else {
+         // Humongous start object was actually dead.
+         return 0;
+       }
      }
  
      assert(start <= hr->end() && start <= ntams && ntams <= hr->end(),
             "Preconditions not met - "
             "start: " PTR_FORMAT ", ntams: " PTR_FORMAT ", end: " PTR_FORMAT,