[ 859.295834][ T5481] ip (5481) used greatest stack depth: 23808 bytes left [ 865.217611][ T5524] gre: GRE over IPv4 demultiplexor driver [ 865.252956][ T5524] ip_gre: GRE over IPv4 tunneling driver [ 868.155966][ T5546] 8021q: 802.1Q VLAN Support v1.8 [ 1043.922134][ T5793] ip (5793) used greatest stack depth: 23776 bytes left