[ 13.598854][ T251] ip (251) used greatest stack depth: 24528 bytes left [ 20.325130][ T330] gre: GRE over IPv4 demultiplexor driver [ 20.340852][ T330] ip_gre: GRE over IPv4 tunneling driver [ 22.808152][ T353] 8021q: 802.1Q VLAN Support v1.8 [ 26.860444][ T391] GACT probability NOT on [ 609.557964][ T6044] ping6 (6044) used greatest stack depth: 24216 bytes left