[    2.263578] ip (246) used greatest stack depth: 12496 bytes left
[    2.302664] ip (249) used greatest stack depth: 12288 bytes left
[    3.075953] ip (280) used greatest stack depth: 12272 bytes left
[   19.456072] mpls_gso: MPLS GSO support
[  689.867601] blackhole_netdev_xmit(): Dropping skb.
[  689.867664] blackhole_netdev_xmit(): Dropping skb.
[  689.867697] blackhole_netdev_xmit(): Dropping skb.
[  689.867743] blackhole_netdev_xmit(): Dropping skb.
[  731.689624] blackhole_netdev_xmit(): Dropping skb.
[  731.689693] blackhole_netdev_xmit(): Dropping skb.
[  731.689739] blackhole_netdev_xmit(): Dropping skb.
[  731.689806] blackhole_netdev_xmit(): Dropping skb.
[ 1085.641648] blackhole_netdev_xmit(): Dropping skb.
[ 1085.641730] blackhole_netdev_xmit(): Dropping skb.
[ 1085.641769] blackhole_netdev_xmit(): Dropping skb.
[ 1085.641810] blackhole_netdev_xmit(): Dropping skb.