Re: 4.8-rc1: resume from hibernation doesn't work

From: Jiri Kosina
Date: Tue Aug 09 2016 - 04:54:22 EST


On Tue, 9 Aug 2016, Jiri Kosina wrote:

> current Linus' tree (HEAD 65ea11ec6, so basically 4.8-rc1+) has broken
> resume from hibernation on my x200s.
>
> Suspend works correctly, resuming proceeds up to the point where it
> reports 100% of reading of the hibernation image, and afterwards the
> machine reboots (tripple fault ... dunno, I don't really see any kernel
> messages between the report of reading the hibernation image and reboot).
>
> 4.7-rc4 is fine on this machine, so I thought I'd bisect it, but
> unfortunately at some point in the bisection process, the hibernation
> itself breaks, so there is not really a way for me to bisect it.
>
> Any ideas which patches to try to revert?

Okay, turning off CONFIG_RANDOMIZE_MEMORY makes the problem go away and
machine resumes properly (and yes, I am running a kernel that already
contains c226fab474).

Adding Thomas Garnier to CC as well.

--
Jiri Kosina
SUSE Labs