[    1.502734] ip (263) used greatest stack depth: 12280 bytes left
[    1.852026] ip (294) used greatest stack depth: 12248 bytes left
[   11.360023] mpls_gso: MPLS GSO support
[  809.721477] blackhole_netdev_xmit(): Dropping skb.
[  809.721532] blackhole_netdev_xmit(): Dropping skb.
[  809.721572] blackhole_netdev_xmit(): Dropping skb.
[  809.721606] blackhole_netdev_xmit(): Dropping skb.