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

["Cui, Dexuan" <dexuan.cui@xxxxxxxxx>]

Cui, Dexuan wrote on 2013-06-28:
> Ben Guthro wrote on 2013-06-28:
>> 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=7fe762b3f06f0e81ce
>> 5b3456dc61fc004562ef21
>>> 
>> 
>> http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=2dd5ee75cdc3101b7
>> a90c8482a27d8cc990dd46d
>>> 
>> 
>> 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.
> Hi Ben, Pasi, thank you both very much for the info!
> 
> Next week, I'll try the latest xen 4.2 stable repo and latest upstream
> Linux 3.9.8 plus the 2 commits((or more?) Konrad pointed out.
> I hope it can work, then I can port the related patches to my specific
> Xen/linux versions(I have to use the versions for some reason).
> 
FYI:
My xen 4.2.1 + picking the following 3 commits can make Dom0 S3 work:
http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=2ea6abb8e60cf557b20b8a9904deb73433103d9b
http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=77cb78851429a5a8509e3dfed466b2580ad5c60d
http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=7fe762b3f06f0e81ce5b3456dc61fc004562ef21
(Surely I also need to apply the 2 commits mentioned by Konrad to my Linux 
3.8.8).

Thanks,
-- Dexuan


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