[  452.044137] tc (3634) used greatest stack depth: 12032 bytes left
[  452.055229] tc mirred to Houston: device veth2 is down
[  452.141265] tc mirred to Houston: device veth3 is down
[  452.144227] tc mirred to Houston: device veth2 is down
[  452.160226] tc mirred to Houston: device veth3 is down