[ 530.995708] tc (6118) used greatest stack depth: 12072 bytes left [ 531.021989] tc mirred to Houston: device veth2 is down [ 531.193932] tc mirred to Houston: device veth3 is down [ 531.201941] tc mirred to Houston: device veth2 is down [ 531.233944] tc mirred to Houston: device veth3 is down