*** old/src/share/vm/gc_implementation/shared/vmGCOperations.cpp	Wed Jan 15 01:41:41 2014
--- new/src/share/vm/gc_implementation/shared/vmGCOperations.cpp	Wed Jan 15 01:41:41 2014

*** 80,90 ****
--- 80,90 ----
    InstanceRefKlass::release_and_notify_pending_list_lock(&_pending_list_basic_lock);
  }
  
  // Allocations may fail in several threads at about the same time,
  // resulting in multiple gc requests.  We only want to do one of them.
! // In case a GC locker is active and the need for a GC is already signalled,
! // In case a GC locker is active and the need for a GC is already signaled,
  // we want to skip this GC attempt altogether, without doing a futile
  // safepoint operation.
  bool VM_GC_Operation::skip_operation() const {
    bool skip = (_gc_count_before != Universe::heap()->total_collections());
    if (_full && skip) {