On Fri, Oct 22, 2010 at 14:54, Thomas Jost <schnouki@xxxxxxxxxxxx> wrote: > Hmm, I've never had this issue, but here are a few ideas: Great ideas, thank you! I learned that the clock kernel parameter is deprecated, it is now called clocksource. Still it is somehow gets ignored, and the kernel uses acpi_pm instead. $ dmesg|grep clock Kernel command line: root=/dev/sda1 resume=/dev/sda2 rootdelay=1 ro vga=787 clocksource=pit Measured 18368 cycles TSC warp between CPUs, turning off TSC clock. Switching to clocksource acpi_pm Something is definitely going on here. I also removed openntpd completely for now, and running the virtual machine without it to see if it helps. -- János
