[    1.698674] ip (260) used greatest stack depth: 12832 bytes left
[    1.723791] ip (263) used greatest stack depth: 12280 bytes left
[    2.113925] ip (294) used greatest stack depth: 12248 bytes left
[   10.805547] ip (1199) used greatest stack depth: 12232 bytes left
[   12.339600] mpls_gso: MPLS GSO support
[  637.599492] ip (7348) used greatest stack depth: 12184 bytes left
[  812.591479] blackhole_netdev_xmit(): Dropping skb.
[  812.591544] blackhole_netdev_xmit(): Dropping skb.
[  812.591584] blackhole_netdev_xmit(): Dropping skb.
[  812.591628] blackhole_netdev_xmit(): Dropping skb.
[ 1006.708038] blackhole_netdev_xmit(): Dropping skb.
[ 1006.708101] blackhole_netdev_xmit(): Dropping skb.
[ 1006.708157] blackhole_netdev_xmit(): Dropping skb.
[ 1006.708205] blackhole_netdev_xmit(): Dropping skb.
[ 1118.570082] blackhole_netdev_xmit(): Dropping skb.
[ 1118.570150] blackhole_netdev_xmit(): Dropping skb.
[ 1118.570195] blackhole_netdev_xmit(): Dropping skb.
[ 1118.570235] blackhole_netdev_xmit(): Dropping skb.