[    1.883212] ip (248) used greatest stack depth: 12440 bytes left
[    2.472788] ip (282) used greatest stack depth: 12344 bytes left
[   14.013681] mpls_gso: MPLS GSO support
[  963.831402] blackhole_netdev_xmit(): Dropping skb.
[  963.831475] blackhole_netdev_xmit(): Dropping skb.
[  963.831514] blackhole_netdev_xmit(): Dropping skb.
[  963.831555] blackhole_netdev_xmit(): Dropping skb.