Comment 19 for bug 1510327

Now that fixes to prevent infinite looping have merged to juno, kilo and master, I've reduced the importance from critical to high. We now need to capture neutron-server logs when the this issue occurs and the new exception is raised so we can determine why this looping occurs. Debug level logs would be most useful, but non-debug logs may now also provide useful info, so please attach either to this bug report.