Those instructions still aren't exposed to the user, are they? | Hacker News

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		eru on May 3, 2023 \| parent \| context \| favorite \| on: Investigating Linux phantom disk reads Those instructions still aren't exposed to the user, are they?

kevin_thibedeau on May 3, 2023 [–]

Doesn't matter. The core doesn't see the x86 instructions either. MOVs are decoded into simpler operations to facilitate reordering.

amluto on May 3, 2023 | [–]

Good luck decoding LOCK CMPXCHG to loads and stores.

In any case, my actual objection was to “LOAD instruction in x86”. It makes no sense.

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