diff -r c1fbf21c7397 -r 190899198332 src/share/vm/gc_implementation/g1/heapRegion.cpp
--- a/src/share/vm/gc_implementation/g1/heapRegion.cpp	Wed Sep 25 17:47:51 2013 +0200
+++ b/src/share/vm/gc_implementation/g1/heapRegion.cpp	Thu Sep 26 10:25:02 2013 -0400
@@ -637,7 +637,7 @@
           gclog_or_tty->print_cr("Object "PTR_FORMAT" in region "
                                  "["PTR_FORMAT", "PTR_FORMAT") is above "
                                  "top "PTR_FORMAT,
-                                 obj, _hr->bottom(), _hr->end(), _hr->top());
+                                 (void *)obj, _hr->bottom(), _hr->end(), _hr->top());
           _failures = true;
           return;
         }
@@ -951,12 +951,12 @@
         Klass* klass = obj->klass();
         if (!klass->is_metaspace_object()) {
           gclog_or_tty->print_cr("klass "PTR_FORMAT" of object "PTR_FORMAT" "
-                                 "not metadata", klass, obj);
+                                 "not metadata", klass, (void *)obj);
           *failures = true;
           return;
         } else if (!klass->is_klass()) {
           gclog_or_tty->print_cr("klass "PTR_FORMAT" of object "PTR_FORMAT" "
-                                 "not a klass", klass, obj);
+                                 "not a klass", klass, (void *)obj);
           *failures = true;
           return;
         } else {
@@ -971,7 +971,7 @@
           }
         }
       } else {
-        gclog_or_tty->print_cr(PTR_FORMAT" no an oop", obj);
+        gclog_or_tty->print_cr(PTR_FORMAT" no an oop", (void *)obj);
         *failures = true;
         return;
       }