[ 10.603402] ip (974) used greatest stack depth: 12192 bytes left [ 14.903090] mpls_gso: MPLS GSO support [ 1080.107791] blackhole_netdev_xmit(): Dropping skb. [ 1080.107871] blackhole_netdev_xmit(): Dropping skb. [ 1080.107911] blackhole_netdev_xmit(): Dropping skb. [ 1080.107946] blackhole_netdev_xmit(): Dropping skb. [ 1098.001180] blackhole_netdev_xmit(): Dropping skb. [ 1098.001245] blackhole_netdev_xmit(): Dropping skb. [ 1098.001281] blackhole_netdev_xmit(): Dropping skb. [ 1098.001318] blackhole_netdev_xmit(): Dropping skb. [ 1118.713226] blackhole_netdev_xmit(): Dropping skb. [ 1118.713286] blackhole_netdev_xmit(): Dropping skb. [ 1118.713324] blackhole_netdev_xmit(): Dropping skb. [ 1118.713363] blackhole_netdev_xmit(): Dropping skb. [ 1146.494624] blackhole_netdev_xmit(): Dropping skb. [ 1146.494682] blackhole_netdev_xmit(): Dropping skb. [ 1146.494717] blackhole_netdev_xmit(): Dropping skb. [ 1146.494753] blackhole_netdev_xmit(): Dropping skb.