Hi, All, Currently when using kvm from qemu-kvm-1.1.0, I found sometimes after doing the restart within the guest OS(winxp), the guest machine becomes extremely slow and the computer info shows the CPU is 'QEMU virtual CPU' and its frequency is rather low(nearly <350M Hz and changed after each restart). Then on this host the guest CPU will never return to normal Hz, even I did a reinstall of qemu-kvm there, if I use '-cpu host' to force use the host CPU, the VM crashed and got bluescreen, besides, the lsmod and kvm-ok shows the kvm mod is all fine and usable and no warning/failure in qemu-kvm running to indicate why the CPU is not same as host CPU. As we know, normally, the Qemu CPU in Guest OS is of the same Hz as the host machine CPU and the guest machine is running quickly when using '-enable-kvm' in kvm cmdline. Would you please share us that has anyone of you met this before, and how to fix/resolve this? Thanks in advance! Best regards. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html