linux-kernel - Re: 3.16-rcX crashes on resume from Suspend-To-RAM

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Date:	Tue, 12 Aug 2014 09:11:55 -0700
From:	Markus Gutschke <markus@...schke.com>
To:	Zhang Rui <rui.zhang@...el.com>
Cc:	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Pavel Machek <pavel@....cz>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	linux-kernel@...r.kernel.org
Subject: Re: 3.16-rcX crashes on resume from Suspend-To-RAM

As I said earlier in this thread, echo'ing "devices" into "pm_test"
does not result in a crash; but doing so for "platform" does.

Markus

On Aug 12, 2014 1:26 AM, "Zhang Rui" <rui.zhang@...el.com> wrote:
>
> On Sat, 2014-08-09 at 03:14 -0700, Markus Gutschke wrote:
> > I am back and have physical access to the machine now.
> >
> great!
>
> > I re-ran the test just to be sure, and I can confirm that "platform"
> > does in fact result in a crash.
> >
> what about "devices"?
> I mean
>
> # echo devices > /sys/power/pm_test
>
> and see if that triggers the crash.
>
> > Furthermore, I ran the test that Rui asked for. I suspended, resumed,
> > and upon crashing power-cycled the machine ASAP. "dmesg" suggests that
> > the problem is with LNXSYBUS:00 That doesn't tell me much, but
> > hopefully it makes sense to you guys.
> >
> [    0.930093]   Magic number: 10:810:122
> [    0.930185] acpi LNXSYBUS:00: hash matches
>
> This looks weird, ACPI will do nothing for LNXSYBUS devices during
> resume.
> Rafael, any thought on this?
>
> thanks,
> rui
>
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