Re: [Xen-devel] Only CPU0 active after ACPI S3, xen 4.1.3

[Marek Marczykowski <marmarek@xxxxxxxxxxxxxxxxxxxxxx>]

On 04.12.2012 14:27, Marek Marczykowski wrote:
> On 03.12.2012 08:39, Jan Beulich wrote:
>>>>> On 30.11.12 at 17:18, Marek Marczykowski <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
>> wrote:
>>> On 30.11.2012 17:12, Jan Beulich wrote:
>>>>>>> Marek Marczykowski <marmarek@xxxxxxxxxxxxxxxxxxxxxx> 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.

It still doesn't work on xen 4.1.4, system reboots at resume. Same on
4.3-unstable (today).
Can you give me some hints about using EHCI debug port? I've found some info
on coreboot page[1]. Is there any way to use it without NET20DC device?
According to lspci my controller have debug port capability.

[1] http://www.coreboot.org/EHCI_Debug_Port

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

Attachment: signature.asc
Description: OpenPGP digital signature

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel