[    1.548067] ip (266) used greatest stack depth: 12288 bytes left
[    1.847681] ip (294) used greatest stack depth: 12272 bytes left
[   10.415556] mpls_gso: MPLS GSO support
[  917.500168] blackhole_netdev_xmit(): Dropping skb.
[  917.500235] blackhole_netdev_xmit(): Dropping skb.
[  917.500311] blackhole_netdev_xmit(): Dropping skb.
[  917.500348] blackhole_netdev_xmit(): Dropping skb.