[ajb]

Here is one: https://en.wikichip.org/wiki/cavium/microarchitectures/vulca...

I don't know the details of how much rework they had to do.

As I understand it cavium still sells processors but only directly to hyperscalers.

Ironically Cavium may have gone through the same process with their previous design, but given that they then acquired this one from broadcom, perhaps it didn't go very well! I have no concrete information though.