[ 1098.765963][ T4941] ip (4941) used greatest stack depth: 23712 bytes left
[ 1098.961144][ T4949] gre: GRE over IPv4 demultiplexer driver
[ 1098.972914][ T4949] ip_gre: GRE over IPv4 tunneling driver
[ 1099.627807][ T4976] ip (4976) used greatest stack depth: 23400 bytes left