SpaceLobstersabout 1 hour ago
Engineers Fix Mars Pathfinder Priority Bug
4 min read
NASA engineers resolved a priority inversion bug on the Mars Pathfinder rover by uploading a C program via the VxWorks interpreter to change a global variable from FALSE to TRUE, ending system resets. This fix occurred after the September 1990 paper by Sha, Rajkumar, and Lehoczky identified the issue, proving the solution existed before the 1997 mission failure.
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