[    2.045592] ip (247) used greatest stack depth: 12376 bytes left
[    2.733900] ip (281) used greatest stack depth: 12360 bytes left
[    2.974435] ip (295) used greatest stack depth: 12344 bytes left
[   18.844475] mpls_gso: MPLS GSO support
[  969.219501] blackhole_netdev_xmit(): Dropping skb.
[  969.219673] blackhole_netdev_xmit(): Dropping skb.
[  969.219708] blackhole_netdev_xmit(): Dropping skb.
[  969.219743] blackhole_netdev_xmit(): Dropping skb.
[ 1106.990887] blackhole_netdev_xmit(): Dropping skb.
[ 1106.990972] blackhole_netdev_xmit(): Dropping skb.
[ 1106.991014] blackhole_netdev_xmit(): Dropping skb.
[ 1106.991054] blackhole_netdev_xmit(): Dropping skb.
[ 1140.553119] blackhole_netdev_xmit(): Dropping skb.
[ 1140.553183] blackhole_netdev_xmit(): Dropping skb.
[ 1140.553219] blackhole_netdev_xmit(): Dropping skb.
[ 1140.553253] blackhole_netdev_xmit(): Dropping skb.