Re: Only CPU0 active after ACPI S3, xen 4.1.3

[Marek Marczykowski <marmarek@invisiblethingslab.com>]

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On 03.12.2012 08:39, Jan Beulich wrote:
>>>> On 30.11.12 at 17:18, Marek Marczykowski <marmarek@invisiblethingslab.com>
> wrote:
>> On 30.11.2012 17:12, Jan Beulich wrote:
>>>>>> Marek Marczykowski <marmarek@invisiblethingslab.com> 11/30/12 5:07 PM >>>
>>>> That was the rare case when resume worked at all... in most cased I've got
>>>> reboot, before anything appear on the screen (even backlight is off) - xen
>>>> panic? dom0 kernel panic?
>>>
>>> Without serial console we won't get very far from here.
>>>
>>>> I don't have serial console, but have USB-to-serial port - is it possible to
>>>> use it as xen console (in xen 4.1.3)?
>>>
>>> Not that I'm aware of. But 4.1.x isn't very interesting from a development
>>> perspective anyway. If you had the same problems still with 4.3-unstable,
>>> then that's be of much more interest to analyze, and you could use the
>>> EHCI debug port (if one of your controllers has one) based serial console.
>>
>> Is it possible to use libxl from xen 4.1 with newer hypervisor? My libxl is
>> somehow patched and porting it to newer version will require some effort.
> 
> I don't think so, but I also don't think you need a libxl at all for the
> purposes here (dealing with S3 is a Dom0-only thing).

I've tested xen 4.2 hypervisor (without serial console) and also rebooted
during resume. But it works with xen 4.1.2, so the problem was introduced
between 4.1.2 and 4.1.3. Will try to get console messages from xen-unstable -
perhaps this will give some hints.

-- 
Best Regards / Pozdrawiam,
Marek Marczykowski
Invisible Things Lab


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