src/hotspot/share/jfr/recorder/service/jfrPostBox.cpp

*** 85,95 ****
  void JfrPostBox::deposit(int new_messages) {
    while (true) {
      const int current_msgs = Atomic::load(&_messages);
      // OR the new message
      const int exchange_value = current_msgs | new_messages;
!     const int result = Atomic::cmpxchg(exchange_value, &_messages, current_msgs);
      if (result == current_msgs) {
        return;
      }
      /* Some other thread just set exactly what this thread wanted */
      if ((result & new_messages) == new_messages) {
--- 85,95 ----
  void JfrPostBox::deposit(int new_messages) {
    while (true) {
      const int current_msgs = Atomic::load(&_messages);
      // OR the new message
      const int exchange_value = current_msgs | new_messages;
!     const int result = Atomic::cmpxchg(&_messages, current_msgs, exchange_value);
      if (result == current_msgs) {
        return;
      }
      /* Some other thread just set exactly what this thread wanted */
      if ((result & new_messages) == new_messages) {