*** old/src/share/vm/opto/output.cpp	Wed Feb 15 11:46:30 2012
--- new/src/share/vm/opto/output.cpp	Wed Feb 15 11:46:30 2012

*** 165,175 ****
--- 165,175 ----
  
  bool Compile::need_stack_bang(int frame_size_in_bytes) const {
    // Determine if we need to generate a stack overflow check.
    // Do it if the method is not a stub function and
    // has java calls or has frame size > vm_page_size/8.
!   return (UseStackBanging && stub_function() == NULL &&
            (has_java_calls() || frame_size_in_bytes > os::vm_page_size()>>3));
  }
  
  bool Compile::need_register_stack_bang() const {
    // Determine if we need to generate a register stack overflow check.