Apache error [notice] Parent: child process exited with status 3221225477 — Restarting

解决地址：https://stackoverflow.com/questions/1138269/apache-error-notice-parent-child-process-exited-with-status-3221225477-res

解决方法：

This problem often happens in Windows because of smaller Apache’s default stack size. And it usually happens when working with php code that allocates a lot of stacks.

To solve this issue, add the following at the end of apache config file, httpd.conf

<IfModule mpm_winnt_module>
    ThreadStackSize 8888888
</IfModule>

AND restart apache. i take this solution from this site.