A bug on the dark side of the Moon

The Apollo Guidance Computer (AGC) is one of the most scrutinised codebases in history … We found a bug in it that had been missed for fifty-seven years: a resource lock in the gyro control code that leaks on an error path, silently disabling the guidance platform’s ability to realign.

https://www.juxt.pro/blog/a-bug-on-the-dark-side-of-the-moon/

#apollo #bugs #software
JUXT Blog: A bug on the dark side of the Moon

How a specification found what fifty-seven years of scrutiny missed.

@alecm Turns out the bug was known, and was fixed between Apollo 15 and 16! 🤩

https://news.ycombinator.com/item?id=47682356

Mike Stewart here! I led the restoration of the AGC documented on CuriousMarc's ... | Hacker News