xlrepfix: loaded (if_xl.c fix-shape replica)
xlrepfix[arm]: fixed-shape tick armed
xlrepfix[stop]: callout_stop RETURNED (fixed shape): fired=4 ran=4 retry=0 pending=0
xlrepfix[arm]: fixed-shape tick armed
xlrepfix[stop]: callout_stop RETURNED (fixed shape): fired=312 ran=5 retry=307 pending=0