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Re: Hibernation does not work after upgrade to Stretch

On Wed, 13 Jun 2018, Piotr wrote:

On Wed, 13 Jun 2018 04:04:54 +0000 (UTC)
davidson <davidson@freevolt.org> wrote:

at a search engine eventually led me to this 2007 document, which
looks interesting:


I have not yet read it in full, (and so, obviously) have never used
it myself.

Thanks for the url to the document. I started to follow it and 3
first tests were not successful (either hang up or crash and reboot
after restoring the image). So I would like to do a debug. I saw
that it is mentioned that:

"To find out why hibernation fails on your system, you can use a
special testing facility available if the kernel is compiled with

I believe the options compiled into the running kernel are found in
the file

  /boot/config-$(uname -r)

So you could do

  $ grep 'CONFIG_PM_DEBUG' /boot/config-$(uname -r)

and see what it says for yours.

For the record, this is what it says for the kernel running here:

  $ uname -r

  $ grep 'CONFIG_PM_DEBUG' /boot/config-$(uname -r)

I think "=y" sounds like good news.

Does this mean that I have to install
linux-image-4.16.0-0.bpo.2-686-pae-dbg kernel in order to proceed
with this?

I do not know the first thing about the purpose or use of *-dbg
kernels. If it does come to that, your guess would be better than

Good luck.

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