[  713.289457][T20854] veth0: entered allmulticast mode
[  713.289804][T20854] veth1: entered allmulticast mode
[  713.290047][T20854] veth2: entered allmulticast mode
[  713.290279][T20854] veth3: entered allmulticast mode
[  722.218646][T21012] tc (21012) used greatest stack depth: 23416 bytes left
[  723.694563][T20854] veth0: left allmulticast mode
[  723.694855][T20854] veth1: left allmulticast mode
[  723.695130][T20854] veth2: left allmulticast mode
[  723.695368][T20854] veth3: left allmulticast mode