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 1923 of /usr/local/web/d7root/core/drupal-7.30/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 /usr/local/web/d7root/core/drupal-7.30/modules/dblog/dblog.module).