Re: Should catchlist elements be marked during GC?

[Richard Stallman]

    During GC, we don't explicitly go through the catchlist, marking the
    TAG and VAL member of each element.

Yes we do.  Here's the code from Fgarbage_collect.

  for (catch = catchlist; catch; catch = catch->next)
    {
      mark_object (catch->tag);
      mark_object (catch->val);
    }