I.MX7 M4 Atomic Cache Bug
I've never personally encountered a bug like this but I have hit my fair share of weird/hard to track down bugs over my embedded software career.Almost always, they leave me a) longing for the blissful ignorance of low level details our whole computing infrastructure is built upon and b) wondering, how on Earth our technology is working as well it does, considering there are layers upon layers of abstractions which could have a lot of issues which are either worked around or just not hit in particular application.