[    2.012811] ip (247) used greatest stack depth: 12376 bytes left
[    2.717936] ip (281) used greatest stack depth: 12344 bytes left
[    9.389273] ip (668) used greatest stack depth: 12288 bytes left
[   17.974586] mpls_gso: MPLS GSO support
[  636.244588] ip (21828) used greatest stack depth: 12192 bytes left
[  898.551949] blackhole_netdev_xmit(): Dropping skb.
[  898.552020] blackhole_netdev_xmit(): Dropping skb.
[  898.552055] blackhole_netdev_xmit(): Dropping skb.
[  898.552088] blackhole_netdev_xmit(): Dropping skb.
[ 1073.558315] blackhole_netdev_xmit(): Dropping skb.
[ 1073.558397] blackhole_netdev_xmit(): Dropping skb.
[ 1073.558441] blackhole_netdev_xmit(): Dropping skb.
[ 1073.558495] blackhole_netdev_xmit(): Dropping skb.
[ 1168.922871] blackhole_netdev_xmit(): Dropping skb.
[ 1168.922949] blackhole_netdev_xmit(): Dropping skb.
[ 1168.923000] blackhole_netdev_xmit(): Dropping skb.
[ 1168.923060] blackhole_netdev_xmit(): Dropping skb.