[   17.879670] ip (254) used greatest stack depth: 12560 bytes left
[   18.111045] ip (275) used greatest stack depth: 12528 bytes left
[   18.166345] ip (281) used greatest stack depth: 12400 bytes left
[   18.218429] ip (287) used greatest stack depth: 12272 bytes left
[   18.740907] gre: GRE over IPv4 demultiplexor driver
[   18.745867] ip6_gre: GRE over IPv6 tunneling driver
[   18.983424] 8021q: 802.1Q VLAN Support v1.8
[   19.410007] GACT probability NOT on
[   19.411856] tc (390) used greatest stack depth: 11992 bytes left