[    1.899747] ip (258) used greatest stack depth: 12288 bytes left
[    2.510375] ip (292) used greatest stack depth: 12272 bytes left
[   16.037302] mpls_gso: MPLS GSO support
[  737.179826] blackhole_netdev_xmit(): Dropping skb.
[  737.179891] blackhole_netdev_xmit(): Dropping skb.
[  737.179922] blackhole_netdev_xmit(): Dropping skb.
[  737.179953] blackhole_netdev_xmit(): Dropping skb.
[ 1198.505012] blackhole_netdev_xmit(): Dropping skb.
[ 1198.505090] blackhole_netdev_xmit(): Dropping skb.
[ 1198.505139] blackhole_netdev_xmit(): Dropping skb.
[ 1198.505186] blackhole_netdev_xmit(): Dropping skb.