Patent ID: 9158618
Filing Date: 2015-10-13
Classification: G06F

Abstract:
1. A memory diagnostic method of diagnosing a memory used by a process during execution of the process, comprising: a variable domain diagnostic step with a variable domain of the memory storing first data that are possibly subject to writing by the process, comprising storing the first data stored in the variable domain in a withdrawal region different from the memory region storing the first data, writing known data in the variable domain where the first data stored in the withdrawal region were stored, and reading data in the withdrawal region and determining whether the data is same as the written known data; and a fixed domain diagnostic step with a fixed domain of the memory storing second data that are not subject to change during execution of the process, the fixed domain divided into two or more parts, the fixed domain diagnostic step comprising adding an error-detecting code for each part of the fixed domain and storing the error-detecting code for each part in the fixed domain in advance, and comparing the error-detecting code calculated from data read from a part of the fixed domain with the added and stored error-detecting code of the same part of the fixed domain to determine whether there is any data error.