[    1.625150] ip (241) used greatest stack depth: 12352 bytes left
[    2.081990] ip (275) used greatest stack depth: 12320 bytes left
[    2.268805] ip (289) used greatest stack depth: 12224 bytes left
[  729.919671] blackhole_netdev_xmit(): Dropping skb.
[  729.919734] blackhole_netdev_xmit(): Dropping skb.
[  729.919771] blackhole_netdev_xmit(): Dropping skb.
[  729.919804] blackhole_netdev_xmit(): Dropping skb.
[  851.921859] blackhole_netdev_xmit(): Dropping skb.
[  851.921923] blackhole_netdev_xmit(): Dropping skb.
[  851.921962] blackhole_netdev_xmit(): Dropping skb.
[  851.922008] blackhole_netdev_xmit(): Dropping skb.
[  967.786977] blackhole_netdev_xmit(): Dropping skb.
[  967.787045] blackhole_netdev_xmit(): Dropping skb.
[  967.787077] blackhole_netdev_xmit(): Dropping skb.
[  967.787111] blackhole_netdev_xmit(): Dropping skb.
[  971.317421] blackhole_netdev_xmit(): Dropping skb.
[  971.317478] blackhole_netdev_xmit(): Dropping skb.
[  971.317514] blackhole_netdev_xmit(): Dropping skb.
[  971.317541] blackhole_netdev_xmit(): Dropping skb.
[ 1022.564556] blackhole_netdev_xmit(): Dropping skb.
[ 1022.564609] blackhole_netdev_xmit(): Dropping skb.
[ 1022.564641] blackhole_netdev_xmit(): Dropping skb.
[ 1022.564670] blackhole_netdev_xmit(): Dropping skb.
[ 1031.826375] blackhole_netdev_xmit(): Dropping skb.
[ 1031.826425] blackhole_netdev_xmit(): Dropping skb.
[ 1031.826468] blackhole_netdev_xmit(): Dropping skb.
[ 1031.826499] blackhole_netdev_xmit(): Dropping skb.
[ 1048.341462] blackhole_netdev_xmit(): Dropping skb.
[ 1048.341523] blackhole_netdev_xmit(): Dropping skb.
[ 1048.341562] blackhole_netdev_xmit(): Dropping skb.
[ 1048.341594] blackhole_netdev_xmit(): Dropping skb.