[    1.924138] ip (247) used greatest stack depth: 12376 bytes left
[    2.475873] ip (281) used greatest stack depth: 12360 bytes left
[    2.515883] ip (286) used greatest stack depth: 12344 bytes left
[    9.329366] ip (792) used greatest stack depth: 12304 bytes left
[   15.338404] mpls_gso: MPLS GSO support
[  637.269520] ip (19315) used greatest stack depth: 12240 bytes left
[  649.651782] ip (20509) used greatest stack depth: 12192 bytes left
[ 1061.945649] blackhole_netdev_xmit(): Dropping skb.
[ 1061.945719] blackhole_netdev_xmit(): Dropping skb.
[ 1061.945748] blackhole_netdev_xmit(): Dropping skb.
[ 1061.945780] blackhole_netdev_xmit(): Dropping skb.