[  636.251577][ T4643] ip (4643) used greatest stack depth: 23360 bytes left
[  641.413050][ T4696] gre: GRE over IPv4 demultiplexor driver
[  641.492850][ T4696] ip6_gre: GRE over IPv6 tunneling driver
[  643.746439][ T4717] 8021q: 802.1Q VLAN Support v1.8