Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [2013] Lost connection to MySQL server at 'reading initial communication packet', system error: 111 in drupal_is_denied() (line 1917 of /var/www/html/includes/bootstrap.inc).

Additional

PDOException: SQLSTATE[HY000] [2013] Lost connection to MySQL server at 'reading initial communication packet', system error: 111 in dblog_watchdog() (line 147 of /var/www/html/modules/dblog/dblog.module).