[  623.142390] tc (13577) used greatest stack depth: 12072 bytes left
[  623.162505] tc mirred to Houston: device veth2 is down
[  623.270489] tc mirred to Houston: device veth3 is down
[  623.279514] tc mirred to Houston: device veth3 is down
[  623.281476] tc mirred to Houston: device veth2 is down