[    2.143945] ip (259) used greatest stack depth: 12288 bytes left
[    2.728057] ip (290) used greatest stack depth: 12272 bytes left
[   17.206567] mpls_gso: MPLS GSO support
[  631.844651] ip (18804) used greatest stack depth: 12240 bytes left
[ 1110.970428] blackhole_netdev_xmit(): Dropping skb.
[ 1110.970498] blackhole_netdev_xmit(): Dropping skb.
[ 1110.970537] blackhole_netdev_xmit(): Dropping skb.
[ 1110.970578] blackhole_netdev_xmit(): Dropping skb.
[ 1170.828242] blackhole_netdev_xmit(): Dropping skb.
[ 1170.828313] blackhole_netdev_xmit(): Dropping skb.
[ 1170.828346] blackhole_netdev_xmit(): Dropping skb.
[ 1170.828390] blackhole_netdev_xmit(): Dropping skb.