Fixed in libvirt-0.8.2-2.el5
Verified on RHEL5.6, include the following archs:
RHEL5.6-Server-xen-i386, x86_64, ia64
And already verified on kvm hypervisor.Move to VERIFIED.
# man libvirtd
Could see libvirtd manual doc.
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.