linux-kernel - Re: [REGRESSION 3.10.1] System does not wake up from suspend

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Message-ID: <20130715045400.GU32054@1wt.eu>
Date:	Mon, 15 Jul 2013 06:54:00 +0200
From:	Willy Tarreau <w@....eu>
To:	Sören Brinkmann <soeren.brinkmann@...il.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [REGRESSION 3.10.1] System does not wake up from suspend

On Sun, Jul 14, 2013 at 09:36:25PM -0700, Sören Brinkmann wrote:
> Hi Greg,
> 
> since upgrading to 3.10.1 I find my system not waking up from suspend
> from time to time. Unfortunately, I couldn't figure out how to reliably
> reproduce the issue. Sometimes it works just fine.
> 
> All I know so far:
> On 3.10 I had my system completely freezing a few times. But that did
> not seem to be related to suspend/resume. I never experienced the
> behavior described below on 3.10.
> 
> On 3.10.1 I hit this bug a few times, that my system did not wake up.
> I.e. the screen stayed black and the power LED kept flashing. But
> nothing brought the system back up and I had to longpress power to reset
> the system.
> I had none of the system freezes like the ones described above anymore.

Fortunately, 3.10.1 is very small. The only patch it contains which is
related to suspend is 18/19 (cpufreq ondemand governor). Maybe you're
having a problem with cpufreq on this machine in fact.

You may want to try to force it to performance mode or powersave mode
and try for a while, it is possible that both 3.10 and 3.10.1 will work
fine.

Best regards,
Willy

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