Patent ID: 7574627

Claim:
A memory dump method by a computer system that performs respective processes of a plurality of operating systems in parallel, the computer system including: a dump execution OS storage means, which stores, among the plurality of operating systems, at least two of the operating systems, that operate in cooperation, associating the operating systems with each other; a first storage means, which stores data used for performing the respective processes of the plurality of operating systems; and a second storage means; and the memory dump method performed by the computer system comprising: a detection step, in which a fault occurring in an operating system is detected; a halting step, in which when the fault is detected, an operating system associated with the operating system in which the fault has occurred, being a faulty OS, is read from the dump execution OS storage means, and process execution of the faulty OS and process execution of the read operating system, being a dump execution OS, are halted; a data acquisition step, in which data for performing the process of the faulty OS, and data for performing the process of the dump execution OS are read from the first storage means, and the read data are stored in the second storage means; and an outputting step, in which the data read from the second storage means are outputted.