On 1/15/09 7:27 AM, "Avi Kivity" <[email protected]> wrote:
 
> Cam you try adding clocksource=acpi_pm to the _guest_ kernel command line?

Avi, 

I booted the guest with clocksource=acpi_pm and it has been running under
heavy load for about 4 hours with kvm -smp 12.  Considering that the guest
previously would not even boot with kvm -smp 12, I think this is the root
cause.  As another data point, I was not able to trigger the bug when
running a guest with all active cores on socket 0 only, but I was able to
trigger it when putting half the cores on socket 1.  So in a nutshell the
kernel uses an unreliable clock source by default on SMP systems?

Thanks for your help!

Regards, 
James





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