Allocate a pair of T one at the start of a page, another at the // end. Any access beyond or before the page boundary should cause a fault. This is linux specific. func dangerousObjs[T any](t *testing.T) (start *T, end *T) { pagesize := syscall.Getpagesize() b, err := syscall.Mmap(0, 0, 3*pagesize, syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_ANONYMOUS|syscall.MAP_PRIVATE) if err != nil { t.Fatalf("mmap failed %s", err) } err = syscall.Mprotect(b[:pagesize], syscall.PROT_NONE) if err != nil {...