Re: [criu] 1M guard page ruined restore

From: Dmitry Safonov
Date: Wed Jun 21 2017 - 13:37:53 EST

On 06/21/2017 08:31 PM, Oleg Nesterov wrote:
On 06/21, Dmitry Safonov wrote:

The only question I have - how is it connected to guard page?

Because with stack guard page do_page_fault() almost never needs to
call expand_stack(), thus this check was almost never tested, I guess.
Probably it should go away now.

Ah, indeed! Thanks for explanation.

I'll write the changelog and patch tomorrow, unless someone does this