メモリサイズの設定が128MB（apc.shm_size ）を超えたら以下のエラーが発生
Script Error
The script did not produce proper HTTP headers. Please see the error log to see the detail of the errors. Depending on the server configuration, you can also run thisscript under CGIWrap debugging. Usually, either rename or linkthe script temporarily to a file which ends with .phpdextension, or add a AddType application/x-httpd-phpcgi-debug .phpline to your .htaccess file.
