[  556.913401] tc (9501) used greatest stack depth: 11960 bytes left
[  556.927562] tc mirred to Houston: device veth2 is down
[  557.001560] tc mirred to Houston: device veth3 is down
[  557.002529] tc mirred to Houston: device veth2 is down
[  557.014547] tc mirred to Houston: device veth3 is down