Description:
------------
Previously to upgrading php-4.4.1 we had no apparent problems with the php session_start() function. After the upgrade we noticed that this one specific script was starting to fail at random occurrences on a production web page.

I did try removing the Zend Optimizer, changing the max_execution setting and remming out the session_start() function. In all cases the only difference was the remming out of the session_start().

Currently we have downgraded to php 4.4.0, everything works fine again, but are nervous about the security issues attached to that.

NOTE: It does look similar to #17451, I'm confused about why the difference between 4.4.0 and 4.4.1 and hence submitting this.

## Configure Line 

./configure  
--with-mysql=/usr/local/mysql/ 
--with-apache=../apache_1.3.34 --with-jpeg-dir=/usr/local/include --with-png-dir=/usr/local/include --with-freetype-dir=/usr/local/include/freetype2 --with-ttf=/usr/local/ttf 
--enable-shmop 
--with-zlib-dir=/usr/local/zlib/ 
--with-mcrypt 
--with-openssl=/usr/local/ssl/

## Unique information...

## Unique PHP.INI information...

zend_optimizer.version=2.5.10a
session.cache_expire = 15
output_buffering = 4096
allow_call_time_pass_reference = Off
memory_limit = 16M (1024MB Base Ram)
display_errors = Off
log_errors = On
error_log = "OUR_LOCAL_PATH"
variables_order = "GPCS"
register_globals = On <<-- php_value register_globals 0 in apache.
register_argc_argv = Off
default_socket_timeout = 60
session.save_path = /tmp <<-- chmod'd 1777
max_execution_time = 30


Reproduce code:
---------------
## Sample Script

<?php
  session_start();
  printf("Got here!<br />\n"); // Doesn't get here.
  exit();
?>

Expected result:
----------------
Got here!

Actual result:
--------------
Times out.