modprobe kvm-intel fails

Binary package hint: kvm

running a "sudo modprobe kvm-intel" returns:

WARNING: Error inserting kvm (/lib/modules/2.6.20-10-generic/kernel/drivers/kvm/kvm.ko): Device or resource busy
FATAL: Error inserting kvm_intel (/lib/modules/2.6.20-10-generic/kernel/drivers/kvm/kvm-intel.ko): Unknown symbol in module, or unknown parameter (see dmesg)
azvoleff@azvoleff-laptop:~$

relevant sections of "dmesg"

[ 203.528000] input: Bluetooth HID Boot Protocol Device as /class/input/input7
[ 465.556000] kvm_intel: Unknown symbol gfn_to_memslot
[ 465.556000] kvm_intel: Unknown symbol set_cr3
[ 465.556000] kvm_intel: Unknown symbol segment_base
[ 465.556000] kvm_intel: Unknown symbol kvm_get_msr_common
[ 465.556000] kvm_intel: Unknown symbol kvm_mmu_free_some_pages
[ 465.556000] kvm_intel: Unknown symbol load_msrs
[ 465.556000] kvm_intel: Unknown symbol kvm_write_guest
[ 465.556000] kvm_intel: Unknown symbol kvm_exit_arch
[ 465.556000] kvm_intel: Unknown symbol emulate_instruction
[ 465.556000] kvm_intel: Unknown symbol fx_init
[ 465.556000] kvm_intel: Unknown symbol set_cr4
[ 465.556000] kvm_intel: Unknown symbol lmsw
[ 465.556000] kvm_intel: Unknown symbol kvm_hypercall
[ 465.556000] kvm_intel: Unknown symbol kvm_init_arch
[ 465.556000] kvm_intel: Unknown symbol set_cr0
[ 465.556000] kvm_intel: Unknown symbol kvm_stat
[ 465.556000] kvm_intel: Unknown symbol set_cr8
[ 465.556000] kvm_intel: Unknown symbol kvm_read_guest
[ 465.556000] kvm_intel: Unknown symbol kvm_set_msr_common
[ 465.556000] kvm_intel: Unknown symbol save_msrs
[ 465.556000] kvm_intel: Unknown symbol kvm_resched

ProblemType: Bug
Architecture: i386
Date: Wed Mar 14 10:29:08 2007
DistroRelease: Ubuntu 7.04
Uname: Linux azvoleff-laptop 2.6.20-10-generic #2 SMP Mon Mar 12 00:02:49 UTC 2007 i686 GNU/Linux