Database Driven Sessions And Php 5.4

Hmm,

This is from my "components" section:

‘db’=>array(

'class' => 'CDbConnection',


'connectionString' => 'mysql:host=localhost;dbname=yii_test',


'emulatePrepare' => true,


'username' => 'root',


'password' => '******',


'charset' => 'utf8',

),

‘session’ => array (

'sessionName' => 'YiiSession',


'class' => 'CDbHttpSession',


'autoCreateSessionTable' => true,


'connectionID' => 'db',


'sessionTableName' => 'YiiSession',


'useTransparentSessionID' => ($_POST['PHPSESSID']) ? true : false,


'autoStart' => 'false',


'cookieMode' => 'only',


'timeout' => 300,

),

This used to work but recently I updated to PHP 5.4 on my localhost and I can observe a problem:

The page does not load ("Connection was reset" on Firefox with "500 Internal Server Error" detected with Firebug).

So, the question is:

Does CDbHttpSession really implements SessionHandlerInterface what is necessary in case of PHP 5.4 ???

Is CHttpSession::open() compatible with SessionHandlerInterface::open($save_path, $session_name) ???

Any comment on that?