On Mon, 30 Oct 2023 at 17:26, Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote: > > BTW, is there any reason for -128 for marking them dead? Looks like > -1 wouldn't be any worse... It's *much* too long ago, but I have this dim memory of simply wanting to make sure that "dead" was clearly separate from "underflow". Linus