Abstract: An error handling and reporting mechanism is capable of taking advantage of sophisticated error analysis performed after clocks have been stopped in response to an error detected in a controller. The controller provides services in a data processing system in response to requests for controller services from a plurality of requestors. The controller includes a plurality of ports for storing requests for controller services. A plurality of servers is coupled to the plurality of ports, and perform separate services associated with the requests for controller services stored in the plurality of ports. An error reporting mechanism is included which is responsive to a detected error in a particular server associated with a request in a particular port, for posting error status in the particular port and causing clock stoppage within a clock stop latency period. An error analysis mechanism analyzes the detected errors during the clock stoppage.