[    2.131178] ip (250) used greatest stack depth: 12376 bytes left
[    2.736524] ip (281) used greatest stack depth: 12360 bytes left
[    6.501540] ip (450) used greatest stack depth: 12344 bytes left
[   18.200312] mpls_gso: MPLS GSO support
[  639.611633] ip (29864) used greatest stack depth: 12240 bytes left
[ 1201.790339] blackhole_netdev_xmit(): Dropping skb.
[ 1201.790417] blackhole_netdev_xmit(): Dropping skb.
[ 1201.790474] blackhole_netdev_xmit(): Dropping skb.
[ 1201.790525] blackhole_netdev_xmit(): Dropping skb.
[ 1219.405903] blackhole_netdev_xmit(): Dropping skb.
[ 1219.405973] blackhole_netdev_xmit(): Dropping skb.
[ 1219.406007] blackhole_netdev_xmit(): Dropping skb.
[ 1219.406040] blackhole_netdev_xmit(): Dropping skb.