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SubjectRe: [BUG] x86 : i486 reporting to be vulnerable to Meltdown/Spectre_V1/Spectre_V2
On Thu 2018-02-08 20:52:40, Alan Cox wrote:
> > > Also worth nothing that the difference between the cpu and memory
> > > speeds is much lower - so far fewer instructions could be speculatively
> > > executed while waiting a cache miss.
>
> But they also have more instructions that take a lot of clocks and are
> easier to stall - eg by doing things like opening and mmapping
> a framebuffer and then doing a floating point double store to it
> misaligned.
>
> Meltdown we can at least reasonably test but spectre is hard.

Do you have pointer for simple meltdown test?

I've got https://github.com/IAIK/meltdown.git but could not get it to
work even on machines that should be vulnerable.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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