Information processing apparatus, image forming apparatus, and information processing program

摘要

A CPU I/F decodes a signal transmitted from a CPU to a target location, and transmits the decoded signal to a mediating module mediating with the target location and to an access log recording unit. The access log recording unit generates an access log using the signal received from the CPU I/F, and stores the access log in an internal RAM. A DMA stores the access log stored in the internal RAM in a nonvolatile RAM when a system controller detects any occurrence of an error in the CPU.

主权项

1. An information processing apparatus comprising:
a mediating unit that
accepts a signal transmitted from a central processing unit (CPU) to a target location, the target location being a module or device connected to the information processing apparatus via a mediating module,decodes the signal, andtransmits the decoded signal to a log storing control unit and the mediating module mediating with the target location, the log storing control unit generating an access log indicating the target location and a content of an access made to the target location using the signal received from the mediating unit, and storing the access log in a first storage unit; a detecting unit that detects an occurrence of an error in the CPU; and a memory control unit that stores the access log stored in the first storage unit in a second storage unit in response to the occurrence of an error being detected, wherein
the CPU and the mediating unit are connected via a bus, andthe detecting unit detects occurrence of an error in the CPU when the bus is not de-asserted although a second predetermined time elapses since the bus is asserted to transmit the signal.