Request Paramerter Causes Segmentation Fault

Hi All, If a request/get varible of the name block[] is passed to any PHP page on my server the Apache child process segmentation faults. e.g: If I go to the following page (where phpinfo.php is: <?php phpinfo(); ?>) http://www.xxx.com/phpinfo.php?block[90]=mark The following appears in my apache error log: Wed Jan 19 12:02:28 2005] [notice] child pid 23623 exit signal Segmentation fault (11) If I go to: http://www.xxx.com/phpinfo.php?bxlock[90]=mark it loads fine. Anyone have any ideas on how I can debug this or what the problem my be? Thanks, Mark Env details: RHEL 3, 2.4.21-27.ELsmp Apache/2.0.48 (Fedora) - httpd-2.0.48-16.1 php-4.3.2-19.ent