[ 11.646070][ T180] ip (180) used greatest stack depth: 23760 bytes left [ 14.233221][ T251] gre: GRE over IPv4 demultiplexer driver [ 14.243454][ T251] ip_gre: GRE over IPv4 tunneling driver [ 14.917731][ T274] 8021q: 802.1Q VLAN Support v1.8 [ 16.121324][ T312] GACT probability NOT on [ 409.328454][T15582] ping6 (15582) used greatest stack depth: 23456 bytes left