[    1.973106] ip (249) used greatest stack depth: 12304 bytes left
[    2.547522] ip (280) used greatest stack depth: 12272 bytes left
[    8.258177] ip (669) used greatest stack depth: 12000 bytes left
[   16.332420] mpls_gso: MPLS GSO support
[ 1031.514690] blackhole_netdev_xmit(): Dropping skb.
[ 1031.514778] blackhole_netdev_xmit(): Dropping skb.
[ 1031.514819] blackhole_netdev_xmit(): Dropping skb.
[ 1031.514855] blackhole_netdev_xmit(): Dropping skb.