System and method for generating trace data in a computing...

Details System and method for generating trace data in a computing... System and method for generating trace data in a computing...

2007-04-03

2007-04-03

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S719000, C714S027000, C714S030000, C714S037000

Reexamination Certificate

active

10300144

ABSTRACT:
A hardware trace unit is integrated into a computer system that has a main memory. The trace unit includes registers that contain information defining a location in main memory, and has an input connection. This is used to eavesdrop on communications in the computer system, thereby obtaining information about the state and/or operation of the system. A trigger mechanism then compares the information received against one or more trigger conditions, such as whether a particular event has occurred. Responsive to the trigger conditions being satisfied, the trace unit generates an output record containing diagnostic information. This is sent for storage in the main memory of the computer at the location defined in the registers.

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