[    2.180032] ip (267) used greatest stack depth: 12304 bytes left
[    2.854654] ip (301) used greatest stack depth: 12288 bytes left
[   17.842475] mpls_gso: MPLS GSO support
[   26.966176] ip (2296) used greatest stack depth: 12264 bytes left
[ 1138.668475] blackhole_netdev_xmit(): Dropping skb.
[ 1138.668559] blackhole_netdev_xmit(): Dropping skb.
[ 1138.668674] blackhole_netdev_xmit(): Dropping skb.
[ 1138.668729] blackhole_netdev_xmit(): Dropping skb.
[ 1216.022234] blackhole_netdev_xmit(): Dropping skb.
[ 1216.022306] blackhole_netdev_xmit(): Dropping skb.
[ 1216.022348] blackhole_netdev_xmit(): Dropping skb.
[ 1216.022385] blackhole_netdev_xmit(): Dropping skb.