dr: Cannot quiesce realtime thread.
A realtime thread was encountered in an attempt to suspend the operating system. Suspending, or quiescence, of realtime threads is not allowed. All realtime threads must be stopped or changed to non-realtime before a suspend can succeed.
Kill the realtime thread(s), or adjust their priority by using the priocntl(1M) command. (You must obtain the PID to adjust the priority of realtime threads.)