FIX_HOLE
BUG_ON(idx <= FIX_HOLE || idx >= __end_of_fixed_addresses);
BUG_ON(idx <= FIX_HOLE || idx >= __end_of_fixed_addresses);
FIX_EARLY_DEBUG_TOP = FIX_HOLE,
BUG_ON(idx <= FIX_HOLE || idx >= __end_of_fixed_addresses);