I don't think this is something to worry about at the moment.
FIFO_FULL is hopefully fixed in the GPS Info (but also in absolute latest firmwares I've disabled that warning as it wasn't any real help).
MEMORY_BUSY would be good to know if you find a way of reliably reproducing this, but again it's nothing to worry about
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
I don't think this is something to worry about at the moment.
FIFO_FULL is hopefully fixed in the GPS Info (but also in absolute latest firmwares I've disabled that warning as it wasn't any real help).
MEMORY_BUSY would be good to know if you find a way of reliably reproducing this, but again it's nothing to worry about