strange behaviour after update from rhel5.3 to rhel5.4b

Today i thought it would be a good idea to take a look onto the kvm and libvirt of rhel5.4 beta.
I did a update of my rhel5.3-installation with a selfbuilt libvirt 0.6.3 and kvm-85 which i removed before doing the update. Afterwards i had no kvm-capabilities. There is no /etc/init.d/kvm - looking into the kvm*.rpm s i can't find any.

modprobe kvm worked
modprobe kvm-intel did not work

FATAL: Error inserting kvm_intel (/lib/modules/2.6.18-155.el5/weak-updates/kmod-kvm/kvm-intel.ko): Unknown symbol in module, or unknown parameter (see dmesg)

kvm_intel: disagrees about version of symbol kvm_clear_guest_page
kvm_intel: Unknown symbol kvm_clear_guest_page
kvm_intel: disagrees about version of symbol gfn_to_page
kvm_intel: Unknown symbol gfn_to_page
kvm_intel: disagrees about version of symbol kvm_get_msr_common
kvm_intel: Unknown symbol kvm_get_msr_common
kvm_intel: disagrees about version of symbol __kvm_set_memory_region
kvm_intel: Unknown symbol __kvm_set_memory_region
kvm_intel: disagrees about version of symbol kvm_vcpu_uninit
kvm_intel: Unknown symbol kvm_vcpu_uninit
kvm_intel: disagrees about version of symbol kvm_emulate_halt
kvm_intel: Unknown symbol kvm_emulate_halt
kvm_intel: disagrees about version of symbol kvm_set_apic_base
kvm_intel: Unknown symbol kvm_set_apic_base
kvm_intel: disagrees about version of symbol kvm_report_emulation_failure
kvm_intel: Unknown symbol kvm_report_emulation_failure
kvm_intel: disagrees about version of symbol kvm_lapic_find_highest_irr
kvm_intel: Unknown symbol kvm_lapic_find_highest_irr
kvm_intel: disagrees about version of symbol kvm_task_switch
kvm_intel: Unknown symbol kvm_task_switch
kvm_intel: disagrees about version of symbol kvm_lmsw
kvm_intel: Unknown symbol kvm_lmsw
kvm_intel: disagrees about version of symbol kvm_set_memory_region
kvm_intel: Unknown symbol kvm_set_memory_region
kvm_intel: disagrees about version of symbol kvm_queue_exception
kvm_intel: Unknown symbol kvm_queue_exception
kvm_intel: disagrees about version of symbol emulate_instruction
kvm_intel: Unknown symbol emulate_instruction
kvm_intel: disagrees about version of symbol kvm_write_guest_page
kvm_intel: Unknown symbol kvm_write_guest_page
kvm_intel: disagrees about version of symbol fx_init
kvm_intel: Unknown symbol fx_init
kvm_intel: disagrees about version of symbol kvm_lapic_get_cr8
kvm_intel: Unknown symbol kvm_lapic_get_cr8
kvm_intel: disagrees about version of symbol kvm_cpu_has_interrupt
kvm_intel: Unknown symbol kvm_cpu_has_interrupt
kvm_intel: disagrees about version of symbol kvm_set_cr3
kvm_intel: Unknown symbol kvm_set_cr3
kvm_intel: disagrees about version of symbol kvm_get_cr8
kvm_intel: Unknown symbol kvm_get_cr8
kvm_intel: disagrees about version of symbol kvm_x86_ops
kvm_intel: Unknown symbol kvm_x86_ops
kvm_intel: disagrees about version of symbol kvm_emulate_hypercall
kvm_intel: Unknown symbol kvm_emulate_hypercall
kvm_intel: disagrees about version of symbol load_pdptrs
kvm_intel: Unknown symbol load_pdptrs
kvm_intel: disagrees about version of symbol kvm_mmu_unprotect_page_virt
kvm_intel: Unknown symbol kvm_mmu_unprotect_page_virt
kvm_intel: disagrees about version of symbol kvm_set_cr4
kvm_intel: Unknown symbol kvm_set_cr4
kvm_intel: disagrees about version of symbol kvm_set_cr0
kvm_intel: Unknown symbol kvm_set_cr0
kvm_intel: disagrees about version of symbol kvm_set_cr8
kvm_intel: Unknown symbol kvm_set_cr8
kvm_intel: disagrees about version of symbol kvm_lapic_enabled
kvm_intel: Unknown symbol kvm_lapic_enabled
kvm_intel: disagrees about version of symbol kvm_mmu_page_fault
kvm_intel: Unknown symbol kvm_mmu_page_fault
kvm_intel: disagrees about version of symbol kvm_mmu_reset_context
kvm_intel: Unknown symbol kvm_mmu_reset_context
kvm_intel: disagrees about version of symbol kvm_queue_exception_e
kvm_intel: Unknown symbol kvm_queue_exception_e
kvm_intel: disagrees about version of symbol kvm_emulate_cpuid
kvm_intel: Unknown symbol kvm_emulate_cpuid
kvm_intel: disagrees about version of symbol kvm_vcpu_init
kvm_intel: Unknown symbol kvm_vcpu_init
kvm_intel: disagrees about version of symbol kvm_mmu_invlpg
kvm_intel: Unknown symbol kvm_mmu_invlpg
kvm_intel: disagrees about version of symbol kvm_set_msr_common
kvm_intel: Unknown symbol kvm_set_msr_common
kvm_intel: disagrees about version of symbol kvm_cpu_get_interrupt
kvm_intel: Unknown symbol kvm_cpu_get_interrupt
kvm_intel: disagrees about version of symbol kvm_emulate_pio
kvm_intel: Unknown symbol kvm_emulate_pio

[root@rr017 ~]# modinfo /lib/modules/2.6.18-155.el5/weak-updates/kmod-kvm/kvm-intel.ko

filename:       /lib/modules/2.6.18-155.el5/weak-updates/kmod-kvm/kvm-intel.ko
license:        GPL
author:         Qumranet
version:        kvm-83-80.el5
srcversion:     F2D565DCEBC9D01F1C59745
depends:        kvm
vermagic:       2.6.18-154.el5 SMP mod_unload gcc-4.1
parm:           bypass_guest_pf:bool
parm:           enable_vpid:bool
parm:           flexpriority_enabled:bool
parm:           enable_ept:bool
parm:           emulate_invalid_guest_state:bool
[root@rr017 ~]# modinfo /lib/modules/2.6.18-155.el5/weak-updates/kmod-kvm/kvm.ko
filename:       /lib/modules/2.6.18-155.el5/weak-updates/kmod-kvm/kvm.ko
license:        GPL
author:         Qumranet
version:        kvm-83-80.el5
srcversion:     41A86E9AB421E1F5CEE59AD
depends:
vermagic:       2.6.18-154.el5 SMP mod_unload gcc-4.1
parm:           oos_shadow:bool
parm:           force_kvmclock:bool

How is this supposed to work?
Has something went wrong here?

Okay, had to delete /lib/modules/2.6.18-155.el5/weak-updates/kvm.ko was created during upgrade.