[ 1940.392373][ T6875] tc (6875) used greatest stack depth: 23536 bytes left
[ 1940.494344][    C2] tc mirred to Houston: device veth2 is down
[ 1940.676248][    C2] tc mirred to Houston: device veth2 is down
[ 1941.163308][    C2] tc mirred to Houston: device veth2 is down
[ 1941.164203][    C2] tc mirred to Houston: device veth2 is down
[ 1941.297285][    C1] tc mirred to Houston: device veth3 is down
[ 1941.507610][    C1] tc mirred to Houston: device veth3 is down
[ 1941.612295][    C1] tc mirred to Houston: device veth3 is down