SCENARIO guard: chan=15, table at page end, next page PROT_NONE
SCENARIO guard: SIGSEGV si_addr=0x800474000 -- table walk left mt7601_rf_chan[14] and the mapped page (unbounded linear search)
SCENARIO guard: child_exit=91
SCENARIO sentinel: child_exit=0
SCENARIO walk-real: child_exit=0
SCENARIO control: child_exit=0