src/hotspot/share/gc/shared/scavengableNMethods.cpp

*** 253,262 ****
--- 253,263 ----
  
    nmethod* last = NULL;
    nmethod* cur = _head;
    while (cur != NULL) {
      nmethod* next = gc_data(cur).next();
+     debug_only(gc_data(cur).clear_marked());
      assert(gc_data(cur).on_list(), "else shouldn't be on this list");
  
      if (!cur->is_zombie() && !cur->is_unloaded() && has_scavengable_oops(cur)) {
        // Keep it.  Advance 'last' to prevent deletion.
        last = cur;