[   25.024956] ip (391) used greatest stack depth: 12512 bytes left
[   25.069718] ip (403) used greatest stack depth: 12320 bytes left
[   25.418423] gre: GRE over IPv4 demultiplexor driver
[   25.420102] ip_gre: GRE over IPv4 tunneling driver
[   25.588806] 8021q: 802.1Q VLAN Support v1.8