[    2.691553] ip (279) used greatest stack depth: 12360 bytes left
[    6.503404] ip (463) used greatest stack depth: 12344 bytes left
[   16.666787] mpls_gso: MPLS GSO support
[  728.497449] blackhole_netdev_xmit(): Dropping skb.
[  728.497577] blackhole_netdev_xmit(): Dropping skb.
[  728.497614] blackhole_netdev_xmit(): Dropping skb.
[  728.497666] blackhole_netdev_xmit(): Dropping skb.
[  813.448636] blackhole_netdev_xmit(): Dropping skb.
[  813.448696] blackhole_netdev_xmit(): Dropping skb.
[  813.448729] blackhole_netdev_xmit(): Dropping skb.
[  813.448760] blackhole_netdev_xmit(): Dropping skb.
[  996.599401] blackhole_netdev_xmit(): Dropping skb.
[  996.599498] blackhole_netdev_xmit(): Dropping skb.
[  996.599529] blackhole_netdev_xmit(): Dropping skb.
[  996.599561] blackhole_netdev_xmit(): Dropping skb.
[ 1131.568536] blackhole_netdev_xmit(): Dropping skb.
[ 1131.568606] blackhole_netdev_xmit(): Dropping skb.
[ 1131.568649] blackhole_netdev_xmit(): Dropping skb.
[ 1131.568687] blackhole_netdev_xmit(): Dropping skb.