[ 1572.076429][ T4691] tc (4691) used greatest stack depth: 23288 bytes left
[ 1572.217246][    C0] tc mirred to Houston: device veth2 is down
[ 1572.320835][    C3] tc mirred to Houston: device veth2 is down
[ 1572.976990][    C2] tc mirred to Houston: device veth2 is down
[ 1572.977863][    C2] tc mirred to Houston: device veth2 is down
[ 1573.177840][    C2] tc mirred to Houston: device veth3 is down
[ 1573.185715][    C2] tc mirred to Houston: device veth3 is down
[ 1573.385563][    C2] tc mirred to Houston: device veth3 is down
[ 1573.545802][    C0] tc mirred to Houston: device veth3 is down