Excavating
Patent
1989-11-13
1992-08-18
Atkinson, Charles E.
Excavating
395575, 364DIG1, 3642681, 3642689, G06F 1100
Patent
active
051405938
ABSTRACT:
Disclosed is a method of checking a test program in a duplex processing apparatus including two processors connected to each other through a failure acknowledge line and an interprocessor communication line and constituting an active system and a standby system, main memories connected to the two processors through buses, respectively, a queue connected to the buses which connect the processors to the main memories, and bus arbitors for controlling contention of a bus occupy right on the buses. In this method, normality of the test program is checked from an execution address of the test program executed by the standby processor under the control of the active processor.
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Atkinson Charles E.
NEC Corporation
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