Fujitsu Corporation

Kazuhide Imaeda

Hiroyuki Yamamoto

Yasutoshi Suzuki

Takashi Nakagawa

Eiju Shin

Kazuya Watanabe

Kentaro Nishihara

Baku Tamura

Yuki Hasegawa

Masayuki Jibu

An information processing apparatus includes a rewriting unit and an execution unit. The rewriting unit rewrites a first instruction described at a trace point in a function defined in a program to a second instruction which gives instructions to execute a trace code, and stores the first instruction in a storage unit. The execution unit executes the trace code on the basis of the second instruction at the time of execution at the trace point in the function. If a third instruction which calls the function is included in the trace code, the execution unit replaces, at the time of executing the third instruction, the second instruction at the trace point in the function with the first instruction stored in the storage unit, and performs the function.

Trace method and information processing apparatus

A non-transitory computer-readable recording medium stores a memory management program that causes a computer to execute a process. The process includes detecting writing into a memory; and saving, in association with each other in a predetermined storage area, data before the writing which is stored in a data area of a write destination of the detected writing, and context information of a processor at a time of detecting the writing into the memory.

Memory management program, memory management method, and memory management device

A high reliability system in which a plurality of apparatuses each having a variable function unit and a fixed function unit are mutually connected through an internal network. Pairs of apparatuses are constructed and spare apparatuses are allocated, thereby providing redundancy. Each apparatus has a service processing unit which executes the software for providing a peculiar service to every apparatus pair, a synchronization processing unit which synchronizes the services between the apparatus pair, a fault detecting unit which detects a fault of the pair partner apparatus, and a fault processing unit which, issues a pair request to the network and reconstructs an apparatus pair together with the apparatus to which the pair application has been made. The redundancy recovery after the exchange of the failed apparatus is executed automatically, thereby shortening a time in a non-redundant state.

High reliability system, redundant construction control method, and program

Growing community of inventors

Kawasaki, Japan

Kazuhide Imaeda