Fault Injection and Monitoring Capability for a Fault-Tolerant Distributed Computation System

The Configurable Fault-Injection and Monitoring System (CFIMS) is intended for the experimental characterization of effects caused by a variety of adverse conditions on a distributed computation system running flight control applications. A product of research collaboration between NASA Langley Research Center and Old Dominion University, the CFIMS is the main research tool for generating actual fault response data with which to develop and validate analytical performance models and design methodologies for the mitigation of fault effects in distributed flight control systems. Rather than a fixed design solution, the CFIMS is a flexible system that enables the systematic exploration of the problem space and can be adapted to meet the evolving needs of the research. The CFIMS has the capabilities of system-under-test (SUT) functional stimulus generation, fault injection and state monitoring, all of which are supported by a configuration capability for setting up the system as desired for a particular experiment. This report summarizes the work accomplished so far in the development of the CFIMS concept and documents the first design realization

Runtime Monitoring On Hard Real-Time Operating Systems

This thesis will compare and evaluate different approaches in integrating runtime monitors into processes running on a hard real-time operating system. The host system is a single board computer (SBC) with a VxWorks 653 hard real-time operating system henceforth referred to as a flight control computer (FCC). The FCC is an integrated modular avionics (IMA) system representative of actual flight computers. VxWorks 653 is based on the ARINC 653 standard and provides time and space partitioning for IMA systems.M.S