Apparently the recursion is being caused by

    if (ref $_) {
        # ...<snip>...
        $_ .= '';
[download]

in Carp.pm (or Carp/Heavy.pm).

I recommend that you copy Carp.pm to MyCarp.pm, and hack away at it. And maybe submit a patch when you're done.

-- Frag.
--
"Just remember what ol' Jack Burton does when the earth quakes, the poison arrows fall from the sky, and the pillars of Heaven shake. Yeah, Jack Burton just looks that big old storm right in the eye and says, "Give me your best shot. I can take it."