src/hotspot/share/runtime/interfaceSupport.cpp

*** 85,95 ****
  RuntimeHistogramElement::RuntimeHistogramElement(const char* elementName) {
    static volatile int RuntimeHistogram_lock = 0;
    _name = elementName;
    uintx count = 0;
  
!   while (Atomic::cmpxchg(1, &RuntimeHistogram_lock, 0) != 0) {
      while (Atomic::load_acquire(&RuntimeHistogram_lock) != 0) {
        count +=1;
        if ( (WarnOnStalledSpinLock > 0)
          && (count % WarnOnStalledSpinLock == 0)) {
          warning("RuntimeHistogram_lock seems to be stalled");
--- 85,95 ----
  RuntimeHistogramElement::RuntimeHistogramElement(const char* elementName) {
    static volatile int RuntimeHistogram_lock = 0;
    _name = elementName;
    uintx count = 0;
  
!   while (Atomic::cmpxchg(&RuntimeHistogram_lock, 0, 1) != 0) {
      while (Atomic::load_acquire(&RuntimeHistogram_lock) != 0) {
        count +=1;
        if ( (WarnOnStalledSpinLock > 0)
          && (count % WarnOnStalledSpinLock == 0)) {
          warning("RuntimeHistogram_lock seems to be stalled");