[    1.678006] ip (260) used greatest stack depth: 12264 bytes left
[    2.089634] ip (294) used greatest stack depth: 12232 bytes left
[   11.442563] mpls_gso: MPLS GSO support
[ 1233.717473] blackhole_netdev_xmit(): Dropping skb.
[ 1233.717584] blackhole_netdev_xmit(): Dropping skb.
[ 1233.717653] blackhole_netdev_xmit(): Dropping skb.
[ 1233.717706] blackhole_netdev_xmit(): Dropping skb.