Maximum execution time exceeds due to session start?

I am getting following error when I use Zend_Session::Start() in my bootstrap file.

Maximum execution time of 30 seconds exceeded in G:\wamp\library\Zend\Session.php on line 480

On line 480 of Zend\Session.php code is

$startedCleanly = session_start();

The browser keeps loading the page like forever due to it , its like infinite while loop . Context

class Bootstrap extends Zend_Application_Bootstrap_Bootstrap
{

    protected $_config;
    protected $_acl;
    protected $_auth;

public function _initMyAutoloader()
{
    $autloader = Zend_Loader_Auto开发者_JS百科loader::getInstance();
    $autloader->pushAutoloader(new Zend_Application_Module_Autoloader(array('basePath'=>APPLICATION_PATH . '/','namespace'=>'')));
    return $autloader ;

}

public function _initMyConfig()
{
    Zend_Session::start();
    $this->_config = new Zend_Config($this->getOptions());
    Zend_Registry::set('config',$this->_config);
    return $this->_config;
}

Thanks.

---

It's not because of session, but max_execution_time.

max_execution_time can be set in php.ini, so you can modify it:

max_execution_time = 60     ; Maximum execution time of each script, in seconds