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Re: [Xen-devel] guest being crashed from viridian_start_apic_assist()


  • To: Jan Beulich <JBeulich@xxxxxxxx>
  • From: Paul Durrant <Paul.Durrant@xxxxxxxxxx>
  • Date: Fri, 3 Jun 2016 09:39:00 +0000
  • Accept-language: en-GB, en-US
  • Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Fri, 03 Jun 2016 09:41:01 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>
  • Thread-index: AQHRvXbr6jLXJV0/1kSoOfD8WEkQxZ/Xdc2w
  • Thread-topic: guest being crashed from viridian_start_apic_assist()

> -----Original Message-----
> From: Jan Beulich [mailto:JBeulich@xxxxxxxx]
> Sent: 03 June 2016 10:04
> To: Paul Durrant
> Cc: xen-devel
> Subject: guest being crashed from viridian_start_apic_assist()
> 
> Paul,
> 
> to test a guest ACPI change I went through all Windows versions that
> I have installed anywhere, to find 32-bit Win7 dying (the other
> variants I tried worked fine), albeit retrying a couple of times I then
> didn't see this a second time. Is this something you've observed
> elsewhere? The APIC assist logic isn't that complicated, and I can't
> really spot any race in there...
> 

Hi Jan,

How did it die?

I've not seen any problems in dev testing and I usually use win7 32-bit. APIC 
assist has not yet been enabled by default in XenServer builds though so it has 
not had automated test exposure yet... I should really get round to turning it 
on now that 7.0 has shipped.

  Paul

> Thanks, Jan


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