[   19.003534] ip (597) used greatest stack depth: 12248 bytes left
[   19.045053] ip (609) used greatest stack depth: 12216 bytes left
[   19.436945] gre: GRE over IPv4 demultiplexer driver
[   19.438727] ip_gre: GRE over IPv4 tunneling driver
[   19.608273] 8021q: 802.1Q VLAN Support v1.8