[ 13.891292][ T251] ip (251) used greatest stack depth: 24016 bytes left [ 20.523686][ T329] gre: GRE over IPv4 demultiplexer driver [ 20.540963][ T329] ip_gre: GRE over IPv4 tunneling driver [ 22.927560][ T352] 8021q: 802.1Q VLAN Support v1.8 [ 27.149513][ T390] GACT probability NOT on [ 1463.605105][T14170] ping6 (14170) used greatest stack depth: 23952 bytes left