[    1.911144] ip (294) used greatest stack depth: 12288 bytes left
[   11.623779] mpls_gso: MPLS GSO support
[  801.495951] blackhole_netdev_xmit(): Dropping skb.
[  801.496034] blackhole_netdev_xmit(): Dropping skb.
[  801.496081] blackhole_netdev_xmit(): Dropping skb.
[  801.496124] blackhole_netdev_xmit(): Dropping skb.