Just noticed this on latest rawhide (Fedora 21):
Looks like the bug might not be libvirt's fault (as the assertion
failure is not in our source file), but I'm out of time to investigate
further today.
$ VIR_TEST_DEBUG=1 ./virdrivermoduletest
TEST: virdrivermoduletest
1) Test driver "network" ... OK
2) Test driver "storage" ... OK
3) Test driver "nodedev" ... OK
4) Test driver "secret" ... OK
5) Test driver "nwfilter" ... OK
6) Test driver "interface"
... lt-virdrivermoduletest: route/tc.c:973: rtnl_tc_register: Assertion
`0' failed.
Aborted
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library
http://libvirt.org