[libvirt] Potential problem with /proc/mounts items that don't exist inside Kubernetes

Hello all, This is my first mail to this list, so let me introduce myself. My name is Juan Hernandez, and I work in the oVirt team. Currently I am experimenting with the integration between ManageIQ and KubeVirt. I recently detected a potential issue when running libvirt inside Kubernetes, as part of KubeVirt. There are entries in /proc/mounts that don't exist, and libvirt can't start virtual machines because of that. This is specific to this enviroment, but I think it may be worth addressing it in libvirt itself. See the following issue for details: Libvirt fails when there are hidden cgroup mount points in `/proc/mounts` https://github.com/kubevirt/libvirt/issues/4 I suggested a possible fix there, which seems simple, but it makes all tests fail. I'd be happy to fix the tests as well, but I would need some guidance on how to do so. Any suggestion is welcome. Thanks in advance, Juan Hernandez