[ 13.902132][ T191] ip (191) used greatest stack depth: 24112 bytes left [ 16.677517][ T268] gre: GRE over IPv4 demultiplexer driver [ 16.693119][ T268] ip_gre: GRE over IPv4 tunneling driver [ 17.630348][ T291] 8021q: 802.1Q VLAN Support v1.8 [ 19.243791][ T330] GACT probability NOT on [ 97.222983][ T824] ping6 (824) used greatest stack depth: 24080 bytes left [ 422.538183][T11321] ping6 (11321) used greatest stack depth: 23424 bytes left