Fwd: A more general possible meltdown/spectre countermeasure

[Wojciech Puchar]

>       While is doesn't defeat the attack, tt does still complicate attacks, so
>       I think it's worth considering.
> 
> 
> The problem is that the attempts to access kernel space are speculative. There's no way to get the 'speculative trap' that would
> have been generated had the code actually executed. There literally is no signal to the kernel this just happened.
> 
> Warner 
> 
> 
f..k. so there are no real workarounds. Anyway - if CPU companies would be 
honest they would replace at least all server CPUs that are on warranty