h2inumscan
h2inumscan(kd, 4, cp);
h2inumscan(kd, tab, (uintptr_t)ip.rbnode.rbe_left);
h2inumscan(kd, tab, (uintptr_t)ip.rbnode.rbe_right);
static void h2inumscan(kvm_t *kd, int tab, uintptr_t cp);