Description:
------------
Due to a mistake, we passed an unusual long String to header(), and the webserver.

From /var/log/messages:
Sep 15 15:17:27 www5 kernel: pid 92266 (httpd), uid 80: exited on signal 4

My String contains an urlencode() "SQL error", which I wanted to pass on to the next page via GET. 

The "SQL error" includes the query I issued (including the binary data that was supposed to be saved to the database) and the error message from MySQL.

We run Apache2, with PHP as a module.

Reproduce code:
---------------
Unfortunately, I cannot copy and paste it here. It's just too long. The entire string passed to header() was 79600 characters long.

If needed I can upload it on a URL and add it later on as a comment.

The simple code is:

<?php
$str = 'Location:--really--really--long--string--';
header($str);
exit;
?>

Expected result:
----------------
I know that you are only supposed to send only 256 (?) characters over GET, but for example I would expect the string to be cut off instead, or header() to return false. 

Actual result:
--------------
Webserver crashed.

From /var/log/messages:
Sep 15 15:17:27 www5 kernel: pid 92266 (httpd), uid 80: exited on signal 4