Betriebssysteme · Institut für Systemarchitektur · Fakultät Informatik · TU Dresden

21. 06. 2013

Bounding Error Detection Latencies for Replicated Execution

Martin Kriegel

TU Dresden

Verteidigung der Bakkalaureatsarbeit

Redundancy is a common approach to cope with transient hardware errors which activate bit flips in processors. The replication framework Romain on top of L4/Fiasco, implements a redundancy mechanism that detects and recovers from bit flips by using a majority decision of correct and valid replicas. Therefore, Romain checks the replicas whenever they encounter an exception/pagefault or issue a system call. The goal of my work is to achieve configurable, frequent checks of replicas in order to reduce the error detection latency with the help of an instruction-based watchdog.
25. Jun 2020
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