Re: [PATCH 00/39 v7] PTI support for x86-32

From: Linus Torvalds
Date: Wed Jul 11 2018 - 12:28:53 EST


On Wed, Jul 11, 2018 at 4:30 AM Joerg Roedel <joro@xxxxxxxxxx> wrote:
>
> I did the load-testing again with 'perf top', the ldt_gdt
> self-test and a kernel-compile running in a loop again.

So none of the patches looked scary to me, but then, neither did
earlier versions.

It's the testing that worries me most. Pretty much no developers run
32-bit any more, and I'd be most worried about the odd interactions
that might be hw-specific. Some crazy EFI mapping setup or the similar
odd case that simply requires a particular configuration or setup.

But I guess those issues will never be found until we just spring this
all on the unsuspecting public.

Linus