Re: [PATCH v2 3/4] PM / Hibernate: fix SANITIZE_FREED_PAGES

[Rafael J. Wysocki]

On Monday, May 04, 2015 11:50:13 PM PaX Team wrote:
> On 4 May 2015 at 23:16, Anisse Astier wrote:
> 
> > SANITIZE_FREED_PAGES feature relies on having all pages going through
> > the free_pages_prepare path in order to be cleared before being used. In
> > the hibernate use case, pages will automagically appear in the system
> > without being cleared.
> 
> is this based on debugging/code reading/discussions with hibernation folks
> (i see none of them on CC, added them now) or is it just a brute force attempt
> to fix the symptoms? if the former, it'd be nice to share some more details
> and have Acks from the code owners.

I haven't seen it, for one, and I'm wondering why the "clearing" cannot be done
at the swsusp_free() time?

In any case, please CC hibernation-related patches and discussions thereof to
linux-pm@xxxxxxxxxxxxxxxx

Thanks!

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