What percentage of chips couldn't handle lock cmpxchg8b eax? We're not talking about well formed code, we're talking about adversarial code from the web, designed to trigger edge cases or exercise obscure parts of the spec. Not sure spectre was relevant to NaCl, rowhammer was.
If you don't handle reading a dword across a segment boundary the same way intel does, then remote code execution. How confident are you do? I didn't test, I bet I can find edge cases you deviate in. I'll bet money on this.
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Who's angry? You keep responding with point scoring stuff and not responding to the actual content.
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What specifically do you do about errata that say "under complex micro-architectural conditions ... [any data can be corrupted and changed to any value]"?
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