Hi Andrew!
[chuck]:(3:SEVERE): real-time watchdog counter-measure activating...
What does that mean? How can I fix it? The shell/--loop prints it (and then stops working) fairly often, usually when I hit lots of notes really fast.
The ChucKian watchdog looks for signs of shreds possibly stuck in infinite loops without advancing time. Once it detects a potentially troubling situation (it has no way of knowing if there is actually an infinite loop or if the current process is simply taking too long), it takes measures to deprioritize virtual machine processes, reducing the likelihood of ChucK continuing to clobber the CPU. In some cases, it may be desirable to disable the watchdog - the "--nowatchdog" flag should achieve that. I hope this helps a bit. Best, Ge!