[  603.659574] tc (4826) used greatest stack depth: 11968 bytes left
[  603.674540] tc mirred to Houston: device veth2 is down
[  603.753526] tc mirred to Houston: device veth3 is down
[  603.767534] tc mirred to Houston: device veth2 is down
[  603.788542] tc mirred to Houston: device veth3 is down