[    2.563369] ip (285) used greatest stack depth: 12272 bytes left
[   17.007674] mpls_gso: MPLS GSO support
[   30.138492] ip (2698) used greatest stack depth: 12248 bytes left
[  819.761504] blackhole_netdev_xmit(): Dropping skb.
[  819.761572] blackhole_netdev_xmit(): Dropping skb.
[  819.761606] blackhole_netdev_xmit(): Dropping skb.
[  819.761639] blackhole_netdev_xmit(): Dropping skb.
[  886.205492] blackhole_netdev_xmit(): Dropping skb.
[  886.205568] blackhole_netdev_xmit(): Dropping skb.
[  886.205620] blackhole_netdev_xmit(): Dropping skb.
[  886.205672] blackhole_netdev_xmit(): Dropping skb.
[  928.662990] blackhole_netdev_xmit(): Dropping skb.
[  928.663053] blackhole_netdev_xmit(): Dropping skb.
[  928.663088] blackhole_netdev_xmit(): Dropping skb.
[  928.663124] blackhole_netdev_xmit(): Dropping skb.