src/hotspot/share/gc/g1/g1ConcurrentMark.inline.hpp

*** 70,10 ***
--- 70,13 ---
  
    // Some callers may have stale objects to mark above nTAMS after humongous reclaim.
    // Can't assert that this is a valid object at this point, since it might be in the process of being copied by another thread.
    assert(!hr->is_continues_humongous(), "Should not try to mark object " PTR_FORMAT " in Humongous continues region %u above nTAMS " PTR_FORMAT, p2i(obj), hr->hrm_index(), p2i(hr->next_top_at_mark_start()));
  
+   if (hr->is_open_archive()) {
+     log_debug(gc)("mark OA obj " PTR_FORMAT, p2i(obj));
+   }
    bool success = _next_mark_bitmap->par_mark(obj);
    if (success) {
      add_to_liveness(worker_id, obj, obj->size());
    }
    return success;