Suddenly one of customers noticed quite big error_log file full of the messages:
We had to downgrade suHosin to fix this.
PHP Warning: PHP Startup: Suhosin Extension does not officially support PHP 5.2 and below anymore, because it is discontinued. Use it at your own risk. in Unknown on line 0
# download and install older suhosin wget http://download.suhosin.org/suhosin-0.9.31.tgz tar zxf suhosin-0.9.31.tgz cd suhosin-0.9.31 phpize ./configure make make install /etc/init.d/httpd restart