--- a/hotspot/src/share/vm/gc/g1/g1HeapVerifier.cpp	Thu Aug 17 17:26:02 2017 +0200
+++ b/hotspot/src/share/vm/gc/g1/g1HeapVerifier.cpp	Tue Aug 29 10:41:51 2017 +0000
@@ -62,7 +62,7 @@
       oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
       if (_g1h->is_obj_dead_cond(obj, _vo)) {
         Log(gc, verify) log;
-        log.info("Root location " PTR_FORMAT " points to dead obj " PTR_FORMAT, p2i(p), p2i(obj));
+        log.error("Root location " PTR_FORMAT " points to dead obj " PTR_FORMAT, p2i(p), p2i(obj));
         if (_vo == VerifyOption_G1UseMarkWord) {
           log.error("  Mark word: " PTR_FORMAT, p2i(obj->mark()));
         }