[Bug 228442] Re: KVM eats 100% CPU, Host Hardy64, Guest XP with more than 1 VCPU

[Marcelo Boveto Shima]

Windows XP does not allow changing from non-acpi to acpi hal:
http://support.microsoft.com/kb/315278
and
http://support.microsoft.com/kb/309283

But as a workaround you can go to 
Device Manager -> Computer -> MPS Multiprocessor
and update the driver to Standard PC.

This will give 1 idle processor to Windows instead of full workload
cpus.

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KVM eats 100% CPU, Host Hardy64, Guest XP with more than 1 VCPU
https://bugs.launchpad.net/bugs/228442
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