[    2.428110] ip (281) used greatest stack depth: 12344 bytes left
[    5.868046] ip (458) used greatest stack depth: 12160 bytes left
[   14.734796] mpls_gso: MPLS GSO support
[  663.863905] blackhole_netdev_xmit(): Dropping skb.
[  663.863985] blackhole_netdev_xmit(): Dropping skb.
[  663.864035] blackhole_netdev_xmit(): Dropping skb.
[  663.864085] blackhole_netdev_xmit(): Dropping skb.
[  687.112703] blackhole_netdev_xmit(): Dropping skb.
[  687.112785] blackhole_netdev_xmit(): Dropping skb.
[  687.112838] blackhole_netdev_xmit(): Dropping skb.
[  687.112887] blackhole_netdev_xmit(): Dropping skb.