Re: [Xen-devel] ACPI shutdown unreliable with win7?

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

> -----Original Message-----
> From: Ian Campbell [mailto:ian.campbell@xxxxxxxxxx]
> Sent: 29 May 2015 15:36
> To: Paul Durrant
> Cc: Jan Beulich; Andrew Cooper; Ian Jackson; xen-devel
> Subject: Re: [Xen-devel] ACPI shutdown unreliable with win7?
> 
> On Fri, 2015-05-29 at 15:25 +0100, Paul Durrant wrote:
> > > -----Original Message-----
> > > From: Ian Campbell [mailto:ian.campbell@xxxxxxxxxx]
> > > Sent: 29 May 2015 14:14
> > > To: Jan Beulich
> > > Cc: Andrew Cooper; Paul Durrant; Ian Jackson; xen-devel
> > > Subject: Re: [Xen-devel] ACPI shutdown unreliable with win7?
> > >
> > > On Fri, 2015-05-29 at 14:04 +0100, Jan Beulich wrote:
> > > > >>> On 29.05.15 at 14:54, <ian.campbell@xxxxxxxxxx> wrote:
> > > > > On Fri, 2015-05-22 at 10:08 +0100, Ian Campbell wrote:
> > > > >> If win7 doesn't shutdown given a power button request I'd be more
> > > > >> inclined to remove the setting in osstest for those flights and let
> > > > >> guest-stop go back to being never pass than to start making such
> > > changes
> > > > >> to the VM config which I think would probably break the preceding
> > > > >> suspend and migration tests (which aren't completely reliable, but
> are
> > > > >> far more so than this shutdown one).
> > > > >
> > > > > Does anyone have any ideas here or shall I propose:
> > > >
> > > > Unless we have a way to make an adjustment inside the guest for the
> > > > power button to gain "shutdown" meaning, I think there's no
> alternative
> > > > to the change below.
> > >
> > > The strange this is that it does work _sometimes_, either by complete
> > > coincidence or because there is something non-deterministic about how
> > > Win7 reacts to this ACPI event.
> > >
> >
> > How long is the test waiting for the OS to shut down though? If you
> > get unlucky, Windows will wander off to Windows Update, download a
> > bazillion patches and take more than an hour to shut down. If youâre
> > lucky, it may shut down in 10 seconds or less.
> 
> The screenshot in e.g.
> http://logs.test-lab.xenproject.org/osstest/logs/56929/test-amd64-amd64-
> xl-qemut-win7-amd64/info.html
> seems to show that the guest isn't even trying to shut down, it's just
> sat there at the desktop:
> 
> http://logs.test-lab.xenproject.org/osstest/logs/56929/test-amd64-amd64-
> xl-qemut-win7-amd64/win.guest.osstest--vnc.jpeg
> 
> I think if it had hit WU there would be activity on the screen?
> 
> FWIW We appear to wait 200s, if we were seeing failures due to windows
> update then I'd be inclined to extend that, but I think right now that
> would be premature, unless WU happens with no status on the screen.
> 

No, you'd see something. Perhaps our ACPI lid/power switch code is just buggy 
then?

  Paul

> Ian

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