Re: Boot regression with bacf6b499e11 ("x86/mm: Use a struct to reduce parameters for SME PGD mapping") on top of -rc8

[Linus Torvalds]

On Fri, Jan 19, 2018 at 5:23 PM, Laura Abbott <labbott@xxxxxxxxxx> wrote:
>
> Fedora got multiple reports of an early bootup crash post -rc8.
> Bisection showed bacf6b499e11 ("x86/mm: Use a struct to reduce
> parameters for SME PGD mapping") . It doesn't revert cleanly
> but if I revert the few other changes in arch/x86/mm/mem_encrypt.c
> as well it boots up fine.

Odd. I've tried to read through that patch three times to find
anything it actually changes, and I can't find anything.

It looks like that patch should have absolutely no actual behavioral impact.

But clearly I'm missing something. Can anybody see what the mistake in
the conversion is?

             Linus