[    2.568231] ip (282) used greatest stack depth: 12192 bytes left
[   17.647917] mpls_gso: MPLS GSO support
[  809.469132] blackhole_netdev_xmit(): Dropping skb.
[  809.469199] blackhole_netdev_xmit(): Dropping skb.
[  809.469231] blackhole_netdev_xmit(): Dropping skb.
[  809.469263] blackhole_netdev_xmit(): Dropping skb.
[  958.256401] ip (23431) used greatest stack depth: 12064 bytes left
[  966.784962] blackhole_netdev_xmit(): Dropping skb.
[  966.785021] blackhole_netdev_xmit(): Dropping skb.
[  966.785065] blackhole_netdev_xmit(): Dropping skb.
[  966.785092] blackhole_netdev_xmit(): Dropping skb.
[ 1066.389327] blackhole_netdev_xmit(): Dropping skb.
[ 1066.389395] blackhole_netdev_xmit(): Dropping skb.
[ 1066.389427] blackhole_netdev_xmit(): Dropping skb.
[ 1066.389465] blackhole_netdev_xmit(): Dropping skb.