Maybe downgrade to Xen 4.0.2 ( after testing) and packaging Xen 4.0.2 would be reasonable solution for now.
In other words, it's too early to upgrade to xl/libxl tools stack at the moment for systems going to work in
production environment.
VFB (PV DomUs) and HVM VNC Console behave under Xen 4.2 Unstable ( on my boxes) pretty unstable.
Maybe downgrade to Xen 4.0.2 ( after testing) and packaging Xen 4.0.2 would be reasonable solution for now.
In other words, it's too early to upgrade to xl/libxl tools stack at the moment for systems going to work in
production environment.
VFB (PV DomUs) and HVM VNC Console behave under Xen 4.2 Unstable ( on my boxes) pretty unstable.