Re: Houston, we have May 15, 1953 (says guest when host uses cpufreq, and dies)

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Anthony Liguori schrieb:
Tomasz Chmielewski wrote:
Is using cpufreq (i.e. with ondemand governor) on KVM host safe for guests?

I enabled cpufreq on the host, it scaled down the host CPU (Dual-Core AMD Opteron(tm) Processor 2212) to 1 GHz from 2 GHz.

Not with your processor. Intel processors should be fine and any AMD processor that's Barcelona/Phenom or newer.

Looks I'm a bad, bad, anti-environment CO2 contributor then.

From a technical perspective, what are the problems with my CPU that it scales down on the host just fine, but makes the guests "return to the past"?


--
Tomasz Chmielewski
http://wpkg.org
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