PHP Recode Caused PHP Core Dump?

php -v
PHP 5.1.6 with Suhosin-Patch 0.9.6 (cli) (built: Nov 1 2006 11:37:21)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
php in free(): error: junk pointer, too high to make sense
Abort (core dumped)

After this

pkg_deinstall recode

No more core dump, record has bugs?