I’ve found my fair share of SoC bugs over the last couple of decades, and cache coherency is by far the most common problem. It’s complex to implement, and impl

I’ve found my fair share of SoC bugs over the last couple of decades, and cache coherency is by far the most common problem. It’s complex to implement, and implementers are always messing with it to gain a cycle here and there. They get it wrong, frequently. I would go so far as to bet every mainstream SoC has at least one cache coherency bug either already documented (errata) or undiscovered.