Re: kvm and cpu type

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Riccardo Veraldi wrote:
> Hello Iam using kvm83 on CentOS5.2
>
> my system has 2x dual Core intel CPU
>
> Intel(R) Xeon(R) CPU            5110  @ 1.60GHz
>
> asdetected by Centos.
>
> If I start kvm-qemu with no CPU option everythign works and hte guest
> machine detects cpu as
>
> QEMU Virtual CPU version 0.9.1
>
>
> iv I run qemu-kvm -cpu core2duo
>
> the guest hangs at boot time when it detects the CPU.
>
> I do not know how to fix it.
>
> I also do not know if using -cpu swtch can improve performances.

Yes, -cpu core*duo is broken in kvm < 84. Please use the default.
There's usually no real benefit for anyone to use a specific cpu type,
unless you know that you need it.

Alex
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