[    2.043590] ip (247) used greatest stack depth: 12376 bytes left
[    2.729554] ip (281) used greatest stack depth: 12344 bytes left
[   16.225359] mpls_gso: MPLS GSO support
[   16.422756] ip (1364) used greatest stack depth: 12328 bytes left
[   29.033414] ip (2618) used greatest stack depth: 12288 bytes left
[  887.845911] blackhole_netdev_xmit(): Dropping skb.
[  887.846027] blackhole_netdev_xmit(): Dropping skb.
[  887.846091] blackhole_netdev_xmit(): Dropping skb.
[  887.846167] blackhole_netdev_xmit(): Dropping skb.
[ 1069.080894] blackhole_netdev_xmit(): Dropping skb.
[ 1069.080959] blackhole_netdev_xmit(): Dropping skb.
[ 1069.080991] blackhole_netdev_xmit(): Dropping skb.
[ 1069.081025] blackhole_netdev_xmit(): Dropping skb.