Patent ID: 8677179
Filing Date: 2014-03-18
Classification: G06F

Abstract:
1. An information processing apparatus comprising: a degeneration control unit that degenerates a second control device group of a first control device group including a first control device and a third control device different from the first control device and the second control device group including a second control device when the first control device and the second control device performing a synchronization operation with each other detect occurrence of errors; and a re-synchronization processing instructing unit that instructs the first control device and the third control device included in the first control device group to execute re-synchronization processing, wherein when the third control device included in the first control device group receives the instruction for the execution of the re-synchronization processing, the third control device performs interrupt mask setting, and when the first control device included in the first control device group receives the instruction for the execution of the re-synchronization processing, the first control device withholds the execution of the re-synchronization processing, starts error processing, and instructs the control device that performs the interrupt mask setting to release the interrupt mask.