[    2.563556] ip (285) used greatest stack depth: 12272 bytes left
[   15.218137] mpls_gso: MPLS GSO support
[   16.057586] ip (1449) used greatest stack depth: 12128 bytes left
[  831.543949] blackhole_netdev_xmit(): Dropping skb.
[  831.544021] blackhole_netdev_xmit(): Dropping skb.
[  831.544059] blackhole_netdev_xmit(): Dropping skb.
[  831.544100] blackhole_netdev_xmit(): Dropping skb.