src/share/vm/gc_implementation/g1/heapRegion.hpp

*** 570,579 ****
--- 570,580 ----
      // Survivor regions will be scanned on the start of concurrent
      // marking.
      if (!is_survivor()) {
        _next_top_at_mark_start = top();
      }
+     ContiguousSpace::set_saved_mark();
    }
  
    // Returns "false" iff no object in the region was allocated when the
    // last mark phase ended.
    bool is_marked() { return _prev_top_at_mark_start != bottom(); }