I think the safest way is to subclass whatever registry you're using ... but maybe you can borrow from ModPerl::RegistryCooker 

######################################################################
+###
# func: error_check
# dflt: error_check
# desc: checks $@ for errors
# args: $self - registry blessed object
# rtrn: Apache2::Const::SERVER_ERROR if $@ is set, Apache2::Const::OK 
+otherwise
######################################################################
+###

sub error_check {
    my $self = shift;

    # ModPerl::Util::exit() throws an exception object whose rc is
    # ModPerl::EXIT
    # (see modperl_perl_exit() and modperl_errsv() C functions)
    if ($@ && !(ref $@ eq 'APR::Error' && $@ == ModPerl::EXIT)) {
        $self->log_error($@);
        return Apache2::Const::SERVER_ERROR;
    }
    return Apache2::Const::OK;
}

[download]

In reply to Re: grabbing un-handled exceptions via modperl2 by Anonymous Monk
in thread grabbing un-handled exceptions via modperl2 by mmlenz

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.