Hacker News new | ask | show | jobs
by remy_luisant 3083 days ago
Vaporware does tend to be pretty bug-free.
2 comments
acehreli 3083 days ago
Not really. :) The Mill has bugs at many levels from design to implementation both in software and hardware. It's even in the linked paper: "A code generator bug exposing a software vulnerability akin to Spectre variant 1 has been resolved with a bug fix, without hardware modifications."
link
maxharris 3083 days ago
What part of the paper do you take issue with?

Can you point to a specific design feature in the linked paper (or in any of the talks on the Mill CPU) that might be vulnerable?

link
wolfgke 3083 days ago
> What part of the paper do you take issue with?

There exists no Mill CPU - just software models of it at best.

link
gbrown_ 3083 days ago
Do you not think it's reasonable to believe that the Mill is immune to these flaws without hardware given the information presented in this paper?
link
wolfgke 3083 days ago
It is plausible, but without having a concrete CPU on which independent researchers are able to do independent tests I am rather cautious.

Intel, AMD and ARM also claimed that the branch prediction on their CPUs cannot in practise be used to generate a side channel - Spectre proved otherwise.

link