php-cgi & ignore_user_abort() - problem

Hello. I have problem with php used as cgi - under specific circumstances php process AFTER handling request goes in some kind of endless loop eating all available cpu time. These circumstances are: 1. ignore_user_abort(true) in script. 2. sending any http header in script. 3. sending any body content after http header. I'm not sure is this php or apache bug - it appears that after apache has cancelled connection, php is still trying to write data to stdout, which results in problem. This problem not exists, if any of above conditions isn't true, and when http connection isn't cancelled before all data are sent. Here is code to reproduce problem: ------ CUT ----- <?php ignore_user_abort(true); header("X-whatever: whatever"); ?> whatever ------ CUT ----- I'm want to check if anybody can help me with this problem before reporting it as php bug. Configuration: linux 2.4.18+grsecurity php 4.2.3 apache 1.3.27 php is configured with apache Action directive,goes through suexec. glibc 2.2.5-14 Best regards. -- Kamil Kaczkowski kamil@kamil.eisp.pl