[ 2.614217] ip (280) used greatest stack depth: 12344 bytes left [ 16.275375] mpls_gso: MPLS GSO support [ 1014.952376] blackhole_netdev_xmit(): Dropping skb. [ 1014.952443] blackhole_netdev_xmit(): Dropping skb. [ 1014.952475] blackhole_netdev_xmit(): Dropping skb. [ 1014.952508] blackhole_netdev_xmit(): Dropping skb. [ 1042.003626] blackhole_netdev_xmit(): Dropping skb. [ 1042.003680] blackhole_netdev_xmit(): Dropping skb. [ 1042.003713] blackhole_netdev_xmit(): Dropping skb. [ 1042.003747] blackhole_netdev_xmit(): Dropping skb. [ 1067.177546] blackhole_netdev_xmit(): Dropping skb. [ 1067.177603] blackhole_netdev_xmit(): Dropping skb. [ 1067.177639] blackhole_netdev_xmit(): Dropping skb. [ 1067.177678] blackhole_netdev_xmit(): Dropping skb. [ 1190.772490] blackhole_netdev_xmit(): Dropping skb. [ 1190.772539] blackhole_netdev_xmit(): Dropping skb. [ 1190.772571] blackhole_netdev_xmit(): Dropping skb. [ 1190.772604] blackhole_netdev_xmit(): Dropping skb.