Mod_fastcgi crash the webgui

[nonroot]

There is a problem with the fastcgi module for pfsense's lighttpd, if I try many concurrent connections, I get this error in the lighttpd logs and the webgui crash,
someone knows if this issue is fixed in trunk?
i am on pfsense 1.2 and i used "ab" software to test :

ab -kc 1000 -t 20 https://192.168.20.20:3000/index.php

The error is:

2008-07-28 17:34:47: (mod_fastcgi.c.1731) connect failed: Connection refused on unix:/tmp/php-fastcgi.socket-3
2008-07-28 17:34:47: (mod_fastcgi.c.2885) backend died; we'll disable it for 5 seconds and send the request to another backend instead: reconnects: 0 load: 777
2008-07-28 17:34:47: (mod_fastcgi.c.1731) connect failed: Connection refused on unix:/tmp/php-fastcgi.socket-2
2008-07-28 17:34:47: (mod_fastcgi.c.2885) backend died; we'll disable it for 5 seconds and send the request to another backend instead: reconnects: 0 load: 777
2008-07-28 17:34:47: (mod_fastcgi.c.1731) connect failed: Connection refused on unix:/tmp/php-fastcgi.socket-1
2008-07-28 17:34:47: (mod_fastcgi.c.2885) backend died; we'll disable it for 5 seconds and send the request to another backend instead: reconnects: 0 load: 777
2008-07-28 17:34:47: (mod_fastcgi.c.1731) connect failed: Connection refused on unix:/tmp/php-fastcgi.socket-0
2008-07-28 17:34:47: (mod_fastcgi.c.2885) backend died; we'll disable it for 5 seconds and send the request to another backend instead: reconnects: 0 load: 777
2008-07-28 17:34:47: (mod_fastcgi.c.3496) all handlers for  /exec.php on .php are down.
2008-07-28 17:34:55: (connections.c.261) SSL: -1 5 54 Connection reset by peer 

thx in advanced