Re: [PATCH] mm: mm, mmap: do not blow on PROT_NONE MAP_FIXED holes in the stack

From: Linus Torvalds
Date: Wed Jul 05 2017 - 13:43:33 EST

On Wed, Jul 5, 2017 at 9:56 AM, Michal Hocko <mhocko@xxxxxxxxxx> wrote:
> "mm: enlarge stack guard gap" has introduced a regression in some rust
> and Java environments which are trying to implement their own stack
> guard page. They are punching a new MAP_FIXED mapping inside the
> existing stack Vma.

Hmm. What version is this patch against? It doesn't seem to match my 4.12 tree.