#18515 [Opn]: Apache2filter hangs on DNS request

ID: 18515 Updated by: rasmus@php.net Reported By: ryan@estara.com Status: Open Bug Type: Apache2 related Operating System: Redhat 7.2 PHP Version: 4.3.0-dev New Comment: So it is clearly an issue of something not being threadsafe somewhere in there. Perhaps in libgd as you mention that specifically, but who knows. Thread safety issues like this are very difficult to track down. There will be hundreds of similar problems which is one of the main reasons that Apache2 in anything but prefork mode and PHP are not going to be a viable production-quality solution for a very very long time. (read years) Previous Comments: ------------------------------------------------------------------------ [2002-07-29 16:39:57] ryan@estara.com When apache is compiled with mpm=prefork this bug does not exist. It does exist when mpm=worker or mpm=threadpool. -Ryan ------------------------------------------------------------------------ [2002-07-24 01:09:30] ryan@estara.com Same thing happens with PHP-4.3.0-dev with Apache 2.0.4-dev as of the lastest and greatest from both late last week. Are you not able to reproduce this? ------------------------------------------------------------------------ [2002-07-23 20:56:36] sniper@php.net You should also try the latest CVS versions of both Apache2 and PHP.. ------------------------------------------------------------------------ [2002-07-23 20:56:00] sniper@php.net reclassified ------------------------------------------------------------------------ [2002-07-23 18:33:12] ryan@estara.com Also this will prevent resolution of hostnames in mod_rewrite say you have have that configuration in your apache config and add a rewrite rule of: RewriteEngine on RewriteRule ^/magik(.*) http://www.magik.net$1 [P] it will hang on the lookup of 'www.magik.net'. It does not hang, however, if you comment out the line where you load the php module. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/18515 -- Edit this bug report at http://bugs.php.net/?id=18515&edit=1