Re: why guests show Clocksource tsc unstable on bootup?

2009-03-15 Thread Avi Kivity
Tomasz Chmielewski wrote: Why do my guests show Clocksource tsc unstable on bootup? Linux expects the tsc to be monotonic and to have a 1:1 correspondence with real time, which isn't easy to achieve with virtualization. dmesg shows that kvm-clock was set as the primary cpu clock. Yet a

Re: why guests show Clocksource tsc unstable on bootup?

2009-03-15 Thread Tomasz Chmielewski
Avi Kivity schrieb: Tomasz Chmielewski wrote: Why do my guests show Clocksource tsc unstable on bootup? Linux expects the tsc to be monotonic and to have a 1:1 correspondence with real time, which isn't easy to achieve with virtualization. But the clocksource is kvm-clock, so why does the

why guests show Clocksource tsc unstable on bootup?

2009-03-09 Thread Tomasz Chmielewski
Why do my guests show Clocksource tsc unstable on bootup? dmesg shows that kvm-clock was set as the primary cpu clock. Yet a bit later kernel says Clocksource tsc unstable. Is it something to worry about, or perhaps calculating tsc is hardcoded? And as such, will be always checked? Or, is it