>>>>> "Norihiko" == Norihiko Ono <ono@n105.is.tokushima-u.ac.jp> writes: Norihiko> `memory fault' error happens on my NeXTstation Turbo. So Norihiko> long as parameter of `fact' is a small positive integer, say Norihiko> 100, the function is evaluated successfully. Rebuild from a recent source-haible and the problem with disappear.