Comment 16 for bug 1418097

@Ihar: The OVS-discuss list archives haven't updated yet, but the OVS guys received the bug report and are on it. I'll link it here when the link is available.

@Armando: A logstash query would not be effective because it seems like this crash doesn't happen on OVS versions that are on Ubuntu right now (I'm assuming this because this issue is not manifesting at the gate, and the only guys that are hitting this issue are running Fedora).

Anyhow, I submitted a patch. It seems like the qg device was never deleted for DVR SNAT routers. While the kernel panic should not happen in production (Because the device is actually not deleted, and the external bridge should not be deleted either, unlike functional tests that clean up after themselves). However, since routers tend to come and go over a long period of time, I guess we don't really want lingering qg devices from long gone routers.