intermittent segfaults, ssl?

Hi,

I have a server like this:
  Server Version: Apache/2.2.9 (Debian) mod_ssl/2.2.9 OpenSSL/0.9.8g
          mod_apreq2-20051231/2.6.0 mod_perl/2.0.4 Perl/v5.10.0
I'm also using HTML::Mason

I've been getting intermittent segfaults like this:
  child pid 10142 exit signal Segmentation fault (11)
ever since in installed Apache2 in March.

I am going to try to debug this, but I thought I would ask if anyone
might have a suggestion based on this behavior:
  - no segfaults occur with 8 hours of an apache restart; the first fault
    can be 8 to 48 hours after restart, the 2nd may occur within seconds;
    there have never been more than 5 in a day.

  - I have observed these faults *only* for port 443 (ssl) requests.

  - The simplest case has been when a plain HTML page was served through
    mod_perl and mason; e.g. no database call.

I know probably shouldn't be imposing on list-readers time without doing
more work, but I just wonder is it isn't something really elementary 
that I'm missing.

Mark