Description:
------------
PHP: PHP Version 5.3.6

'./configure' '--prefix=/usr/local/php' '--with-config-file-path=/etc/php' '--with-apxs2=/usr/local/apache/bin/apxs' '--with-mysql=/usr/local/mysql' '--with-mysql-sock=/var/run/mysql/mysql.pid' '--with-mysqli=/usr/local/mysql/bin/mysql_config' '--with-pgsql=/usr/local/pgsql' '--with-sqlite' '--with-pdo-mysql=/usr/local/mysql/bin/mysql_config' '--with-pdo-pgsql=/usr/local/pgsql' '--with-db4' '--with-openssl' '--with-xmlrpc' '--with-xsl' '--with-zlib' '--with-gettext' '--with-gd' '--with-pear' '--with-bz2' '--with-curl' '--enable-gd-native-ttf' '--with-freetype-dir=/usr/lib' '--enable-sockets' '--enable-ftp' '--enable-inline-optimization' '--enable-magic-quotes' '--enable-mbstring' '--enable-xml' '--enable-soap' '--enable-wddx' '--enable-zip' '--enable-sqlite-utf8' 


Apache: Apache/2.2.17



Reproduce code:
---------------
$js = new JSContext();
$js2 = $js;           
echo get_class($js2);

//result: segmentation fault
 
$js = new JSContext();
$js2 = clone $js;           
echo get_class($js2);

//result: JSContext


Expected result:
----------------
JSContext


Actual result:
--------------
// Segmentation fault