On Sul, 2005-11-13 at 11:36 -0800, Linus Torvalds wrote:
> The thing is, we wouldn't ever remove _all_ lock prefixes. Only the ones
> that already depend on SMP.
>
> So the memory barriers etc that have lock prefixes even on UP would be
> totally untouched.
That much makes sense. Having some magic MSR reloaded to turn lock
effects off is a bit more of a problem for ECC scrubbing however.
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