ASPLOS XVII Proceedings of the seventeenth international conference on Architectural Support for Programming Languages and Operating Systems
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This paper proposes a scheme to recover the state of peripheraldevices in non-volatile main memory systems sothat the system resumes its execution after an unpredictablepower failure. Our scheme is software-based approach andaccomplishes the recoverable system without complex hardwareequipments. First, the requirements for maintainingconsistency are discussed based on the concepts of distributedmessage-passing systems. Next, the application toa device driver are illustrated using an example. Experimentswith UART and network devices showed that the systemrestarted properly after a power failure, and that systemperformance was barely decreased.