diff -r ea0cc7c74e75 -r a47d1e21b3f1 src/hotspot/share/gc/shared/space.cpp
--- a/src/hotspot/share/gc/shared/space.cpp	Mon Apr 09 08:19:26 2018 -0400
+++ b/src/hotspot/share/gc/shared/space.cpp	Thu Apr 05 10:54:53 2018 +0200
@@ -397,7 +397,7 @@
   } else {
     // if the object isn't moving we can just set the mark to the default
     // mark and handle it specially later on.
-    q->init_mark();
+    q->init_mark_raw();
     assert(q->forwardee() == NULL, "should be forwarded to NULL");
   }
 
@@ -695,14 +695,14 @@
     // allocate uninitialized int array
     typeArrayOop t = (typeArrayOop) allocate(size);
     assert(t != NULL, "allocation should succeed");
-    t->set_mark(markOopDesc::prototype());
+    t->set_mark_raw(markOopDesc::prototype());
     t->set_klass(Universe::intArrayKlassObj());
     t->set_length((int)length);
   } else {
     assert(size == CollectedHeap::min_fill_size(),
            "size for smallest fake object doesn't match");
     instanceOop obj = (instanceOop) allocate(size);
-    obj->set_mark(markOopDesc::prototype());
+    obj->set_mark_raw(markOopDesc::prototype());
     obj->set_klass_gap(0);
     obj->set_klass(SystemDictionary::Object_klass());
   }