Data processing apparatus, memory failure determination method, and non-transitory computer readable recording medium

Abstract

In a data processing apparatus, a buffer memory BM including a first buffer memory RM, a second buffer memory MM, a third buffer memory RM, and a fourth buffer memory MM, stores therein data that is formed of a plurality of bits, and a CPUA reads the data from the buffer memory BM, performs bit inversion on the plurality of bits to generate bit inverted data in which a value of each of the bits is inverted, writes the bit inverted data in the buffer memory BM at a first time, reads the data from the buffer memory BM at a second time that is later than the first time, compares first data that is bit inverted data that is written in the buffer memory BM at the first time and second data that is bit inverted data that is read from the buffer memory BM at the second time, and determines presence of a failure in the buffer memory BM.