s2disk no longer working

[celejar]

Hi,

Suspend to disk has stopped working for me with bleeding edge kernels:

~$ uname -a
Linux lizzie 2.6.31-rc2-wl-lizzie-27873-ga483c23-dirty #4 Thu Jul 9 19:13:30 EDT 2009 i686 GNU/Linux

This is a self-compiled kernel from the wireless-testing git repo.  I
think that the configuration is pretty much the same as my previous
kernels (I initially changed several things in -rc2, but I think that
I've tested kernels with all the significant changes rolled back).

When I do 'hibernate', the system just hangs after switching to the
console and printing 's2disk: snapshotting'.  I notice that the light
on my USB mouse turns off, and the power LED begins to flash red (green
is its normal state), just as during a working suspend.

Has anyone experienced anything like this?  Any suggestions for
debugging, kernel reconfiguration, workarounds, etc.?

Celejar
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[Nate Bargmann-4]

I've not had any success with resume from s2disk for so long that I've
given up on it.  I just get a kernel panic on restart.  Hibernate to
RAM works flawlessly.

>From a recent thread on the Linux-Thinkpad mailing list, it seems
s2disk has been broken for several kernel releases.

- Nate >>

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[celejar]

On Thu, 9 Jul 2009 21:22:43 -0500
Nate Bargmann <n0nb@...> wrote:

> I've not had any success with resume from s2disk for so long that I've
> given up on it.  I just get a kernel panic on restart.  Hibernate to
> RAM works flawlessly.

s2disk has always worked fine here, and even now, it's the suspend
that's failing, not the resume.  I've never got resuming from s2ram
working properly here.  I guess this is a classic YMMV situation ...

> >From a recent thread on the Linux-Thinkpad mailing list, it seems
> s2disk has been broken for several kernel releases.

Interesting.  Do you mean this?

http://mail.matrix.de/pipermail/linux-thinkpad/2009-July/047164.html

If so, the response suggests that changes to the Intel graphics driver
may be at fault:

http://mail.matrix.de/pipermail/linux-thinkpad/2009-July/047172.html

I do have Intel graphics.

Should I report this somewhere?

Celejar
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[celejar]

On Thu, 9 Jul 2009 20:02:42 -0400
Celejar <celejar@...> wrote:

> Hi,
>
> Suspend to disk has stopped working for me with bleeding edge kernels:
>
> ~$ uname -a
> Linux lizzie 2.6.31-rc2-wl-lizzie-27873-ga483c23-dirty #4 Thu Jul 9 19:13:30 EDT 2009 i686 GNU/Linux

FTR, the problem, which may have been related to the IDE drivers, seems
to have been resolved in -rc3:

http://lkml.org/lkml/2009/7/12/112

Celejar
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