Re: [Xen-devel] ACPI S3 resume with Xen and Linux not working (will work in Linux v3.11) Was: Re: Re: crash on resume after suspend

[Ben Guthro <ben@xxxxxxxxxx>]

On Fri, Jun 28, 2013 at 7:55 AM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> On Fri, Jun 28, 2013 at 11:27:28AM +0000, Cui, Dexuan wrote:
>> Konrad Rzeszutek Wilk wrote on 2013-06-26:
>> > On Wed, Jun 26, 2013 at 08:47:43AM +0000, Cui, Dexuan wrote:
>> >> Konrad Rzeszutek Wilk wrote on 2013-06-25:
>> >>> ACPI S3 resume is not yet working (but will with Linux 3.11) b/c the
>> >>> patches to allow that functionality had not been merged upstream.
>> >> Hi Konrad,
>> >> Do you imply your own tree(which branch?)
>> >>  (http://git.kernel.org/cgit/linux/kernel/git/konrad/xen.git)
>> >>  can work with Dom0 S3?
>> >> Where are the patches to support Dom0 S3? I'd like to try them.
>> >> I see there is a branch devel/acpi-s3.v10 in the tree, but I'm not sure if
>> > you meant it.
>> >
>> > git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git 
>> > linux-next
>> > or bleeding-edge
>> >
>> > You want to make sure these show up
>> >
>> > 068e0dc xen / ACPI / sleep: Register an acpi_suspend_lowlevel callback.
>> > d6a77ea x86 / ACPI / sleep: Provide registration for
>> > acpi_suspend_lowlevel.
>> >
>> Hi Konrad,
>> Thanks for the information!
>>
>> I'm using Xen-4.2.1 + Linux 3.8.8 and Dom0 S3 has such an issue:
>>
>
> Afaik for ACPI S3 to work you need Xen 4.2.3 (so currently 4.2.2 + a couple 
> of patches from stable-4.2 branch):
>
> http://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=refs/heads/stable-4.2
>
> These are the post 4.2.2 fixes for ACPI S3:
> http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=7fe762b3f06f0e81ce5b3456dc61fc004562ef21
> http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=2dd5ee75cdc3101b7a90c8482a27d8cc990dd46d
>

The first is necessary, the second is not.

However, linux 3.8.8 will not work out of the box - you need to apply
the changes Konrad pointed out, or else the machine will go to sleep,
but never wake up.



>
>>
>> I'm going to dig into this and appreciate any related information!
>>
>
> Not sure if your issue is related to those missing hypervisor patches.. worth 
> checking.
>
> -- Pasi
>
>
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