Comment 0 for bug 1784276

There is an issue that seems to hit people at very low frequency.
Reason is using xen (seldom) while also having virtualbox installed (seldom as well).

Together they both register a signal handler and break with an assert.
See: https://askubuntu.com/questions/1060001/problems-starting-libvirt-daemon-in-ubunti-18-04

This is long known upstream:
 - https://bugzilla.redhat.com/show_bug.cgi?id=1278847
 - https://www.redhat.com/archives/libvir-list/2015-November/msg00366.html

This is rather low on prio, but if we e.g. really will split connection drivers we might add a conflicts between xen / virtualbox just on xen connection drivers.