src/hotspot/share/prims/jvm.cpp

*** 231,241 ****
  
    JVMHistogramElement::JVMHistogramElement(const char* elementName) {
      _name = elementName;
      uintx count = 0;
  
!     while (Atomic::cmpxchg(1, &JVMHistogram_lock, 0) != 0) {
        while (Atomic::load_acquire(&JVMHistogram_lock) != 0) {
          count +=1;
          if ( (WarnOnStalledSpinLock > 0)
            && (count % WarnOnStalledSpinLock == 0)) {
            warning("JVMHistogram_lock seems to be stalled");
--- 231,241 ----
  
    JVMHistogramElement::JVMHistogramElement(const char* elementName) {
      _name = elementName;
      uintx count = 0;
  
!     while (Atomic::cmpxchg(&JVMHistogram_lock, 0, 1) != 0) {
        while (Atomic::load_acquire(&JVMHistogram_lock) != 0) {
          count +=1;
          if ( (WarnOnStalledSpinLock > 0)
            && (count % WarnOnStalledSpinLock == 0)) {
            warning("JVMHistogram_lock seems to be stalled");