--- old/src/share/vm/runtime/mutexLocker.hpp	2016-09-13 11:46:18.236189699 +0200
+++ new/src/share/vm/runtime/mutexLocker.hpp	2016-09-13 11:46:18.090185153 +0200
@@ -81,8 +81,8 @@
 extern Mutex*   Shared_DirtyCardQ_lock;          // Lock protecting dirty card
                                                  // queue shared by
                                                  // non-Java threads.
-extern Mutex*   GlobalMarkStack_lock;            // Protects access to the global mark stack.
-                                                 // (see option ExplicitGCInvokesConcurrent)
+extern Mutex*   MarkStackFreeList_lock;          // Protects access to the global mark stack free list.
+extern Mutex*   MarkStackChunkList_lock;         // Protects access to the global mark stack chunk list.
 extern Mutex*   ParGCRareEvent_lock;             // Synchronizes various (rare) parallel GC ops.
 extern Mutex*   Compile_lock;                    // a lock held when Compilation is updating code (used to block CodeCache traversal, CHA updates, etc)
 extern Monitor* MethodCompileQueue_lock;         // a lock held when method compilations are enqueued, dequeued