Re: [Xen-devel] Windows HVM cannot auto reboot after cashdump with more then 1 VCPU

[Tim Deegan <Tim.Deegan@xxxxxxxxxx>]

At 06:04 -0500 on 11 Feb (1234332247), Wayne Gong wrote:
> Hi folks
> 
> I meet a problem when implement crash dump feature of winpv drives for xen. 
> If a windows HVM (without winpv driver) use more then 1 VCPU, it cannot 
> reboot automatically even I set on_crash = 'restart' and on_reboot = 
> 'restart' in vm.cfg file.  If I set VCPU to 1, it works fine. Any suggestion?

ISTR Xen 3.1 didn't handle inter-vcpu NMIs properly, so multi-vcpu
windows guests would fail to shut down in some cases (where Windows was
using NMIs to halt its APs for restart); instead the guest would hang.

Cheers,

Tim.
 
> http://communities.vmware.com/thread/188897 will tell you how to course a 
> BSOD and crash dump manually.
> 
> I use Xen 3.1.4.
> 
> Thanks
> Wayne

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-- 
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Citrix Systems (R&D) Ltd.
[Company #02300071, SL9 0DZ, UK.]

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