src/hotspot/share/runtime/os.cpp

*** 360,371 ****
  
      switch (sig) {
        case SIGBREAK: {
          // Check if the signal is a trigger to start the Attach Listener - in that
          // case don't print stack traces.
!         if (!DisableAttachMechanism && AttachListener::is_init_trigger()) {
            continue;
          }
          // Print stack traces
          // Any SIGBREAK operations added here should make sure to flush
          // the output stream (e.g. tty->flush()) after output.  See 4803766.
          // Each module also prints an extra carriage return after its output.
--- 360,388 ----
  
      switch (sig) {
        case SIGBREAK: {
          // Check if the signal is a trigger to start the Attach Listener - in that
          // case don't print stack traces.
!         if (!DisableAttachMechanism) {
!           // Attempt to transit state to AL_INITIALIZING.
!           AttachListenerState cur_state = AttachListener::transit_state(AL_INITIALIZING, AL_NOT_INITIALIZED);
!           if (cur_state == AL_INITIALIZING) {
!             // Attach Listener has been started to initialize. Ignore this signal.
              continue;
+           } else if (cur_state == AL_NOT_INITIALIZED) {
+             // Start to initialize.
+             if (!AttachListener::is_init_trigger()) {
+               // Attach Listener could not be started.
+               // So we need to transit the state to AL_NOT_INITIALIZED.
+               AttachListener::set_state(AL_NOT_INITIALIZED);
+             }
+             continue;
+           } else if (AttachListener::check_socket_file()) {
+             // Attach Listener has been started, but unix domain socket file
+             // does not exist. So restart Attach Listener.
+             continue;
+           }
          }
          // Print stack traces
          // Any SIGBREAK operations added here should make sure to flush
          // the output stream (e.g. tty->flush()) after output.  See 4803766.
          // Each module also prints an extra carriage return after its output.