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

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Message-ID: <alpine.LNX.2.00.1608091051470.22028@cbobk.fhfr.pm>
Date:	Tue, 9 Aug 2016 10:54:15 +0200 (CEST)
From:	Jiri Kosina <jikos@...nel.org>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Pavel Machek <pavel@....cz>
cc:	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
	Thomas Garnier <thgarnie@...gle.com>
Subject: Re: 4.8-rc1: resume from hibernation doesn't work

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