Re: [PULL 19/54] acpi: pc: isa bridge: use AcpiDevAmlIf interface to build ISA device descriptors

[Fiona Ebner]

Am 14.04.23 um 02:07 schrieb Mike Maslenkin:
> Hibernate is disabled by default, that is why "shutdown /h" fails.
> It can be enabled by 'powercfg.exe /h /size 100; powercfg.exe /h on'
> 
> anyway, my hypotheses can be checked easily: just run the VM with
> changed RAM size (±1). This should have to drop hibernate state.

You got it! The VM boots when I change the RAM size. I now enabled
hibernation and tried to reproduce the issue with "shutdown /h", but
couldn't. And not sure how the VM ended up hibernated when it was
disabled, maybe somehow as part of the installation/upgrades?

Best Regards,
Fiona

> 
> BTW I couldn't reproduce problem as well.
> 
> On Thu, Apr 13, 2023 at 3:10 PM Fiona Ebner <f.ebner@proxmox.com> wrote:
>>
>> Am 13.04.23 um 13:46 schrieb Mike Maslenkin:
>>> Sorry for the noise, but just curious, how did you shutdown Windows?
>>> Did you use 'shutdown /s' or just press power button?
>>> Could it be that Windows was actually hibernated.
>>> So, when you try to boot it on the new (old) QEMU version with changed
>>> PCI topology, this could make it upset.
>>> I observed similar behaviour in case of Windows for ARM, but there was
>>> true GSOD afterwards.
>>> When windows is starting again its hibernated state dropped and all goes 
>>> fine.
>>>
>>> Best Regards,
>>> Mike
>>
>> I think I either pressed the shutdown button in our UI, which sends
>> system_powerdown via QMP or via "Shut down" in the Windows start menu.
>> Hibernation is surely something I need to consider (next time), so thank
>> you for the hint, but if it were that, I'd be surprised at why it got
>> stuck even with QEMU 6.2.0 today.
>>
>> If I try "shutdown /h" explicitly, I get "The request is not
>> supported.(50)".
>>
>> Best Regards,
>> Fiona
>>
> 
>