[    2.002569] ip (251) used greatest stack depth: 12376 bytes left
[    2.645259] ip (282) used greatest stack depth: 12344 bytes left
[   16.062684] mpls_gso: MPLS GSO support
[  788.806576] blackhole_netdev_xmit(): Dropping skb.
[  788.806675] blackhole_netdev_xmit(): Dropping skb.
[  788.806734] blackhole_netdev_xmit(): Dropping skb.
[  788.806784] blackhole_netdev_xmit(): Dropping skb.
[  892.215798] blackhole_netdev_xmit(): Dropping skb.
[  892.215888] blackhole_netdev_xmit(): Dropping skb.
[  892.215956] blackhole_netdev_xmit(): Dropping skb.
[  892.216012] blackhole_netdev_xmit(): Dropping skb.
[  957.169823] ip (19378) used greatest stack depth: 12304 bytes left