Comment by vacuity

I note that of the Spectre/Meltdown and similar hardware vulns, even the hard-to-swallow kinds of mitigations for Spectre primarily prevent user-to-kernel hijacking only, which is the most important single property but doesn't cover inter-process hijacking. We can more or less patch these vulns completely, but there is a (huge) performance penalty to be weighed as a drawback. I do not know enough to say whether the Go data race bugs are an acceptable risk. Although, not everyone may accept it, namely if it strikes them just once.