[    3.051582] ip (283) used greatest stack depth: 12384 bytes left
[    9.550409] ip (667) used greatest stack depth: 12360 bytes left
[   17.934798] mpls_gso: MPLS GSO support
[  687.538111] blackhole_netdev_xmit(): Dropping skb.
[  687.538175] blackhole_netdev_xmit(): Dropping skb.
[  687.538207] blackhole_netdev_xmit(): Dropping skb.
[  687.538233] blackhole_netdev_xmit(): Dropping skb.
[ 1236.632802] blackhole_netdev_xmit(): Dropping skb.
[ 1236.632862] blackhole_netdev_xmit(): Dropping skb.
[ 1236.632895] blackhole_netdev_xmit(): Dropping skb.
[ 1236.632929] blackhole_netdev_xmit(): Dropping skb.
[ 1253.841652] blackhole_netdev_xmit(): Dropping skb.
[ 1253.841714] blackhole_netdev_xmit(): Dropping skb.
[ 1253.841750] blackhole_netdev_xmit(): Dropping skb.
[ 1253.841783] blackhole_netdev_xmit(): Dropping skb.