| 摘要 |
PROBLEM TO BE SOLVED: To specify an abnormality cause by obtaining a software execution record in case that auto-restart occurs in a CPU of an SSU 19 constituted of a computer controller. SOLUTION: A logging function 19A performs NMI interruption to the CPU in case that an abnormality by software WDT or hardware WDT possessed by the computer controller or an abnormality of software error is detected, takes the software execution record in the abnormality detection by use of an exceptional handler possessed by OS of the computer controller at interruption, and stores the software execution record in a backup memory 19B. A personal computer 8 collects software execution records from the backup memory through a hub 11, and uses them to specify the abnormality cause. COPYRIGHT: (C)2006,JPO&NCIPI
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