*** old/src/share/vm/gc_implementation/parallelScavenge/gcTaskManager.cpp	Thu Nov  6 12:39:38 2014
--- new/src/share/vm/gc_implementation/parallelScavenge/gcTaskManager.cpp	Thu Nov  6 12:39:37 2014

*** 398,408 ****
--- 398,409 ----
      tty->print_cr("GCTaskManager::initialize: workers: %u", workers());
    }
    assert(workers() != 0, "no workers");
    _monitor = new Monitor(Mutex::barrier,                // rank
                           "GCTaskManager monitor",       // name
!                          Mutex::_allow_vm_block_flag);  // allow_vm_block
!                          Mutex::_allow_vm_block_flag,   // allow_vm_block
+                          Monitor::_safepoint_check_never);
    // The queue for the GCTaskManager must be a CHeapObj.
    GCTaskQueue* unsynchronized_queue = GCTaskQueue::create_on_c_heap();
    _queue = SynchronizedGCTaskQueue::create(unsynchronized_queue, lock());
    _noop_task = NoopGCTask::create_on_c_heap();
    _idle_inactive_task = WaitForBarrierGCTask::create_on_c_heap();

*** 1123,1133 ****
--- 1124,1135 ----
      if (! freelist()->is_empty()) {
        result = freelist()->pop();
      } else {
        result = new Monitor(Mutex::barrier,                  // rank
                             "MonitorSupply monitor",         // name
!                            Mutex::_allow_vm_block_flag);    // allow_vm_block
!                            Mutex::_allow_vm_block_flag,     // allow_vm_block
+                            Monitor::_safepoint_check_never);
          }
      guarantee(result != NULL, "shouldn't return NULL");
      assert(!result->is_locked(), "shouldn't be locked");
      // release lock().
    }