[    2.486444] ip (246) used greatest stack depth: 12376 bytes left
[    3.159296] ip (280) used greatest stack depth: 12192 bytes left
[   16.583913] mpls_gso: MPLS GSO support
[  648.069743] ip (23389) used greatest stack depth: 12064 bytes left
[  663.944651] blackhole_netdev_xmit(): Dropping skb.
[  663.944720] blackhole_netdev_xmit(): Dropping skb.
[  663.944755] blackhole_netdev_xmit(): Dropping skb.
[  663.944787] blackhole_netdev_xmit(): Dropping skb.
[  715.725971] blackhole_netdev_xmit(): Dropping skb.
[  715.726033] blackhole_netdev_xmit(): Dropping skb.
[  715.726070] blackhole_netdev_xmit(): Dropping skb.
[  715.726103] blackhole_netdev_xmit(): Dropping skb.