[    2.641235] ip (281) used greatest stack depth: 12360 bytes left
[    2.687681] ip (285) used greatest stack depth: 12344 bytes left
[   16.630486] mpls_gso: MPLS GSO support
[   22.075300] ip (2108) used greatest stack depth: 12328 bytes left
[  758.811400] blackhole_netdev_xmit(): Dropping skb.
[  758.811472] blackhole_netdev_xmit(): Dropping skb.
[  758.811504] blackhole_netdev_xmit(): Dropping skb.
[  758.811537] blackhole_netdev_xmit(): Dropping skb.
[ 1165.186389] blackhole_netdev_xmit(): Dropping skb.
[ 1165.186460] blackhole_netdev_xmit(): Dropping skb.
[ 1165.186491] blackhole_netdev_xmit(): Dropping skb.
[ 1165.186531] blackhole_netdev_xmit(): Dropping skb.