[ 1556.976984][ T7544] tc (7544) used greatest stack depth: 23800 bytes left
[ 1557.078604][    C3] tc mirred to Houston: device veth2 is down
[ 1557.271507][    C3] tc mirred to Houston: device veth2 is down
[ 1557.648867][    C3] tc mirred to Houston: device veth2 is down
[ 1557.775422][    C3] tc mirred to Houston: device veth2 is down
[ 1557.936168][    C1] tc mirred to Houston: device veth3 is down
[ 1557.999179][    C1] tc mirred to Houston: device veth3 is down
[ 1558.007129][    C1] tc mirred to Houston: device veth3 is down