[  873.511203][ T4391] gre: GRE over IPv4 demultiplexor driver
[  873.587040][ T4391] ip6_gre: GRE over IPv6 tunneling driver
[  876.309880][ T4412] 8021q: 802.1Q VLAN Support v1.8
[ 1043.528704][ T4644] ip (4644) used greatest stack depth: 23904 bytes left