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

[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.

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
>