[    1.991626] ip (292) used greatest stack depth: 12248 bytes left
[   11.516149] mpls_gso: MPLS GSO support
[  635.823001] ip (1197) used greatest stack depth: 12184 bytes left
[  814.382766] blackhole_netdev_xmit(): Dropping skb.
[  814.382852] blackhole_netdev_xmit(): Dropping skb.
[  814.382922] blackhole_netdev_xmit(): Dropping skb.
[  814.382979] blackhole_netdev_xmit(): Dropping skb.
[ 1100.775172] blackhole_netdev_xmit(): Dropping skb.
[ 1100.775241] blackhole_netdev_xmit(): Dropping skb.
[ 1100.775279] blackhole_netdev_xmit(): Dropping skb.
[ 1100.775316] blackhole_netdev_xmit(): Dropping skb.
[ 1163.467143] blackhole_netdev_xmit(): Dropping skb.
[ 1163.467198] blackhole_netdev_xmit(): Dropping skb.
[ 1163.467250] blackhole_netdev_xmit(): Dropping skb.
[ 1163.467284] blackhole_netdev_xmit(): Dropping skb.