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Title:
COMPUTER SYSTEM AND ITS ABNORMALITY MONITORING METHOD
Document Type and Number:
Japanese Patent JPH0962342
Kind Code:
A
Abstract:

To early detect the abnormality of programs, to log the error information, and also to restore the operation of a computer system by specifying the execution times of programs of cycle execution, abnormality monitor and non-cycle execution types respectively.

A RAM 3 stores a table to monitor the abnormality of both cycle and non-cycle execution type programs, a program execution flag that shows whether both programs are under execution, an abnormality monitor interruption flag which shows whether an abnormality monitor type program is under execution, etc. A CPU 1 decides the presence or absence of various interruption signals inputted to an interruption controller 7 in a prescribed order of priority and executes the interruption processing of higher order of priority if plural interruption signals exist at a time. Then the time covering the end of the cycle execution type program through the start of the abnormality monitor type program and the time covering the end of the abnormality monitor type program through the start of the cycle execution type program are set longer than the execution time of the non-cycle execution type program.


Inventors:
MUKAI ATSUSHI
Application Number:
JP1995000212261
Publication Date:
March 07, 1997
Filing Date:
August 21, 1995
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G06F11/30; G05B23/02; (IPC1-7): G05B23/02; G06F11/30
Attorney, Agent or Firm:
大岩 増雄