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SubjectRe: perf_fuzzer compiled for x32 causes reboot

* Steven Rostedt <rostedt@goodmis.org> wrote:

> > Also, this function is called a _LOT_ under certain workloads, I
> > don't know how cheap a CR2 read is, but it had better be really
> > cheap.
>
> That's a HPA question.

We read CR2 in the page fault hot path, so it's on the top of CPU
architects' minds and it's reasonably optimized. A couple of cycles
IIRC, but would be nice to hear actual numbers.

Thanks,

Ingo


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