RE: [tip: ras/core] x86/{mce,mm}: Change so poison pages are either unmapped or marked uncacheable

[Luck, Tony]

> Ok, I had to change this one due to other pending changes in
> tip:x86/entry. The new version below.
>
> Can you guys run this branch to make sure it still works as expected?
>
> https://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git/log/?h=tip-ras-core

Tested the native case. We correctly try to set the page uncacheable because
the scope of the error is a cache line.

I don't have the right setup to test the virtualization case. Maybe Jue can test again?

-Tony