--- old/src/os/aix/vm/osThread_aix.cpp	2014-12-10 11:28:16.473624000 -0500
+++ new/src/os/aix/vm/osThread_aix.cpp	2014-12-10 11:28:13.915403000 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2012, 2013 SAP AG. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -45,7 +45,8 @@
 
   sigemptyset(&_caller_sigmask);
 
-  _startThread_lock = new Monitor(Mutex::event, "startThread_lock", true);
+  _startThread_lock = new Monitor(Mutex::event, "startThread_lock", true,
+                                  Monitor::_safepoint_check_never);
   assert(_startThread_lock !=NULL, "check");
 }