[MODERATED] Re: [PATCH v5 00/27] MDSv5 19

> Slowing the whole kernel down for an ill-defined problem is not ok.  You
> know that

What do you mean by ill defined problem? 

Are you unclear on the group 4 vulnerabilities? I assume you've seen
the disclosures, or is that not correct?

Have you read Documentation/clearcpu.txt? 

There will be some slow down for group 4 mitigations. It's inevitable.
These changes don't come for free. We've been spending a lot of
work to minimize it, but it won't be zero.

-Andi