Inception: A simple XOR can cause a Microarchitectural Stack Overflow

Re:Inception: A simple XOR can cause a Microarchitectural St... by bpye on Wednesday August 09, 2023 @02:40AM (#37059406)

There is state shared between cores too though, at the very least L3, probably IOMMUs, etc. I wouldn’t be entirely surprised if there are issues we haven’t found that exist there.

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Re:Inception: A simple XOR can cause a Microarchitectural St... by Dylan16807 on Wednesday August 09, 2023 @03:27AM (#37059637)

But the further out you push the shared state, the less it hurts to disable speculation that affects the shared state.

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