[    1.862363] ip (247) used greatest stack depth: 12376 bytes left
[    2.423318] ip (281) used greatest stack depth: 12344 bytes left
[    5.544380] ip (444) used greatest stack depth: 12192 bytes left
[   14.791013] mpls_gso: MPLS GSO support
[  701.889222] blackhole_netdev_xmit(): Dropping skb.
[  701.889282] blackhole_netdev_xmit(): Dropping skb.
[  701.889315] blackhole_netdev_xmit(): Dropping skb.
[  701.889343] blackhole_netdev_xmit(): Dropping skb.
[  704.024320] blackhole_netdev_xmit(): Dropping skb.
[  704.024372] blackhole_netdev_xmit(): Dropping skb.
[  704.024403] blackhole_netdev_xmit(): Dropping skb.
[  704.024429] blackhole_netdev_xmit(): Dropping skb.