Re: [mm 4.15-rc8] Random oopses under memory pressure.

[Linus Torvalds]

On Wed, Jan 17, 2018 at 2:00 PM, Dave Hansen
<dave.hansen@xxxxxxxxxxxxxxx> wrote:
>
> I thought that page_zone_id() stuff was there to prevent this kind of
> cross-zone stuff from happening.

Ahh, that was the part I missed. Yeah looks like that checks things
properly. Although the mask generation is *so* confusing that I
stopped following it and will just take your word for it ;)

             Linus