I've tried a couple of the scripts above with Solaris Express and the supplied Perl 5.8.4 and bleadperl. I've not seen any core dumps with either. I do have some more questions, but they would best be answered by you pasting in the output from perl -V into a reply.
Test your modules with bleadperl!
rsync -avz rsync://public.activestate.com/perl-current/ .
./Configure -des -Dusedevel -Dprefix=/path/to/test/perl
Now, please test you modules! If you have test failures that don't happen with Perl 5.8.8, send a simplified test case to
perlbug at perl.org