Description:
------------
descriptions:
1.changes in php.ini:
short_open_tag = On
precision = 16
output_buffering = Off
max_execution_time = 0
memory_limit = 512M
error_reporting = E_ALL & ~E_NOTICE & ~E_WARNING
display_errors = On
variables_order = "EGPCS"
register_argc_argv = On
post_max_size = 100M
default_socket_timeout = 120
2.extensions
extension=php_xsl.dll
extension=php_zip.dll
extension=php_memcache.dll
extension=php_mcrypt.dll
autoglobals_jit = Off
extension=php_com_dotnet.dll
extension=php_soap.dll
extension=php_sockets.dll
extension=php_shmop.dll
extension=php_mbstring.dll
extension=php_gd2.dll
extension=php_curl.dll


Test script:
---------------
1、set_session.php
set_time_limit(0);
session_start();
$memcache = new Memcache();
$memcache->connect('127.0.0.1', '11211');
$i = 1800;
$str = '__';
while ($i > 0)
{
	$_SESSION['mem_session_' . $i] = $i;
	$i--;
}
2、print_session.php

header('Refresh:'. (!empty($_GET['t']) ? $_GET['t'] : 5));
session_start();

echo '<pre>', print_r($_SESSION, true) , '</pre>';

Expected result:
----------------
numbers setted in sessions.

Actual result:
--------------
empty array.