#20053 [Opn]: apache&suexec&php-cgi&ignore_user_abort -> problem with cancelled connections

ID: 20053 Updated by: sniper@php.net Reported By: kamil@kamil.eisp.pl Status: Open Bug Type: Apache related Operating System: linux 2.4.18 -PHP Version: 4.2.3 +PHP Version: 4.3.0-dev New Comment: updated version. Previous Comments: ------------------------------------------------------------------------ [2002-10-24 04:27:26] kamil@kamil.eisp.pl Exactly the same behaviour as in 4.2.3 :( ------------------------------------------------------------------------ [2002-10-24 02:42:11] sniper@php.net Please try using this CVS snapshot: http://snaps.php.net/php4-latest.tar.gz For Windows: http://snaps.php.net/win32/php4-win32-latest.zip ------------------------------------------------------------------------ [2002-10-23 19:40:25] kamil@kamil.eisp.pl Under very specific circumstances, php goes in tight infinite loop eating all cpu after request is cancelled. Configuration: php 4.2.3 as cgi apache 1.3.27 php configured with Action directive, (important) using suexec. Conditions for problem to occur in script: 1.ignore_user_abort(true) 2.sending any http header 3.sending any body content AFTER http header 4. connection is aborted before all data are sent to client. Script to reproduce problem: ---- CUT ---- <? ignore_user_abort(true); header("X-Whatever: whatever"); ?> whatever ---- CUT ---- Problem doesn't exist with mod_php or php-cgi without suexec. It appears that after apache has closed connection php is still trying to write output and loops for unknown reason. I'm not sure if this is fault of php, apache or suexec, but I think it could be fixed in php. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=20053&edit=1