David Kastrup <d...@gnu.org> writes: > It's also a rather inscrutable error symptom. Any chance wrong-type-arg > can guard against uninitialized/invalid types specifically?
In this case the "bad type tag" was a valid tag, but not the one
intended for ports. The tags of the returned port indicated that it was
a pair those car contained a non-immediate object located at an unmapped
address, which caused a segfault while trying to print it.
Mark
