linux-kernel - Re: Help with debugging intermittent crash on resume from hibernation

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Date:	Thu, 19 Mar 2015 20:21:04 -0700
From:	Nikolaus Rath <Nikolaus@...h.org>
To:	linux-acpi@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Help with debugging intermittent crash on resume from hibernation

On Mar 13 2015, Nikolaus Rath <Nikolaus@...h.org> wrote:
> Hello,
>
> In about one out of 10 resumes from hibernation, my system resets after
> the hibernation image has been loaded. I am hibernating using
>
> # echo platform > /sys/power/disk
> # echo disk > /sys/power/state
>
> When testing hibernation using
>
> # echo core > /sys/power/pm_test
> # echo platform > /sys/power/disk
> # echo disk > /sys/power/state
>
> I was not able to produce the same failure.
>
> I then tried attaching a serial console and booted with
> console=ttyS0,115200n8 no_console_suspend. For the failed attempt, the
> last messages before the reset are:
[...]

I reproduced the same problem with 4.0.0-rc3. Is there anything I can do
to get more debugging information?

Thanks,
-Nikolaus

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