[    3.130975] ip (288) used greatest stack depth: 12344 bytes left
[    3.342883] ip (302) used greatest stack depth: 12064 bytes left
[   16.757228] mpls_gso: MPLS GSO support
[  666.171211] blackhole_netdev_xmit(): Dropping skb.
[  666.171273] blackhole_netdev_xmit(): Dropping skb.
[  666.171308] blackhole_netdev_xmit(): Dropping skb.
[  666.171340] blackhole_netdev_xmit(): Dropping skb.
[  818.328580] blackhole_netdev_xmit(): Dropping skb.
[  818.328656] blackhole_netdev_xmit(): Dropping skb.
[  818.328701] blackhole_netdev_xmit(): Dropping skb.
[  818.328742] blackhole_netdev_xmit(): Dropping skb.
[  908.346634] blackhole_netdev_xmit(): Dropping skb.
[  908.346704] blackhole_netdev_xmit(): Dropping skb.
[  908.346743] blackhole_netdev_xmit(): Dropping skb.
[  908.346792] blackhole_netdev_xmit(): Dropping skb.