[ 14.455261][ T251] ip (251) used greatest stack depth: 24352 bytes left [ 21.168518][ T328] gre: GRE over IPv4 demultiplexer driver [ 21.186742][ T328] ip_gre: GRE over IPv4 tunneling driver [ 23.482490][ T351] 8021q: 802.1Q VLAN Support v1.8 [ 27.520049][ T389] GACT probability NOT on [ 307.636488][ T2582] ping6 (2582) used greatest stack depth: 23904 bytes left