[    2.210006] ip (250) used greatest stack depth: 12288 bytes left
[    2.962546] ip (284) used greatest stack depth: 12272 bytes left
[   17.773169] mpls_gso: MPLS GSO support
[   26.320452] ip (2279) used greatest stack depth: 12128 bytes left
[  654.932030] ip (28420) used greatest stack depth: 12000 bytes left
[ 1073.665136] blackhole_netdev_xmit(): Dropping skb.
[ 1073.665210] blackhole_netdev_xmit(): Dropping skb.
[ 1073.665246] blackhole_netdev_xmit(): Dropping skb.
[ 1073.665280] blackhole_netdev_xmit(): Dropping skb.