[    2.776393] ip (294) used greatest stack depth: 12272 bytes left
[   15.513048] ip (1228) used greatest stack depth: 12248 bytes left
[   16.885280] mpls_gso: MPLS GSO support
[  670.389008] blackhole_netdev_xmit(): Dropping skb.
[  670.389080] blackhole_netdev_xmit(): Dropping skb.
[  670.389119] blackhole_netdev_xmit(): Dropping skb.
[  670.389152] blackhole_netdev_xmit(): Dropping skb.