[    2.038602] ip (251) used greatest stack depth: 12288 bytes left
[    2.657298] ip (285) used greatest stack depth: 12272 bytes left
[   17.012946] mpls_gso: MPLS GSO support
[  660.860813] blackhole_netdev_xmit(): Dropping skb.
[  660.860903] blackhole_netdev_xmit(): Dropping skb.
[  660.860956] blackhole_netdev_xmit(): Dropping skb.
[  660.861003] blackhole_netdev_xmit(): Dropping skb.
[  735.181400] blackhole_netdev_xmit(): Dropping skb.
[  735.181481] blackhole_netdev_xmit(): Dropping skb.
[  735.181528] blackhole_netdev_xmit(): Dropping skb.
[  735.181577] blackhole_netdev_xmit(): Dropping skb.