Comment 3 for bug 2051863

We've encountered a similar issue. Following the upgrade of our OpenStack services from Wallaby to Xena, we're experiencing random occurrences of the error: 'libvirt.libvirtError: internal error: Child process (tc filter add dev tap81c8e58f-5a parent ffff: protocol all u32 match u32 0 0 police rate 128000kbps burst 128000kb mtu 64kb drop flowid :1) unexpected exit status 2: Error: Parent Qdisc doesn't exist.' This problem arises during instance creation, hard reboots, and resizing.