Hi, Keir, It seems that some version of Windows2000 only support no more than 15 cpus in ACPI table, otherwise it will cause a BSOD KMODE_EXCEPTION_NOT_HANDLED. This patch decrease the cpu counts in ACPI table to 15. Signed-off-by: Xu Dongxiao <dongxiao.xu@intel.com> KVM also has this issue, see the following link. http://git.kernel.org/?p=virt/kvm/kvm-userspace.git;a=commit;h=18dcd6be7 7864842b42e3d4f88215a6832d1f01c Best Regards, -- Dongxiao _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel