Re: [PATCH v3 00/13] Virtually mapped stacks with guard pages (x86, core)

[Linus Torvalds]

On Fri, Jun 24, 2016 at 10:40 AM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> I think I have a few new places to look at..

Yeah, making the 'stack' pointer be 'unsigned long *' rather than
'void *' shows a number of places where we were very confused about
things.

And in particular, the init_task stack initialization initialized it
to the init_thread pointer. Which was definitely deadly.

Let's see if that was it..

                  Linus