[  967.423110][T13939] veth0: entered allmulticast mode
[  967.423489][T13939] veth1: entered allmulticast mode
[  967.423741][T13939] veth2: entered allmulticast mode
[  967.423972][T13939] veth3: entered allmulticast mode
[  977.127579][T14114] tc (14114) used greatest stack depth: 24448 bytes left
[  979.105699][T13939] veth0: left allmulticast mode
[  979.105995][T13939] veth1: left allmulticast mode
[  979.106212][T13939] veth2: left allmulticast mode
[  979.106399][T13939] veth3: left allmulticast mode