[ 13.606414][ T251] ip (251) used greatest stack depth: 24352 bytes left [ 20.055783][ T328] gre: GRE over IPv4 demultiplexer driver [ 20.080959][ T328] ip_gre: GRE over IPv4 tunneling driver [ 22.307243][ T352] 8021q: 802.1Q VLAN Support v1.8 [ 26.496834][ T390] GACT probability NOT on [ 951.392258][ T9139] ping6 (9139) used greatest stack depth: 23968 bytes left