[  904.034413][ T6747] gre: GRE over IPv4 demultiplexer driver
[  904.054310][ T6747] ip_gre: GRE over IPv4 tunneling driver
[  912.807418][ T6831] ip (6831) used greatest stack depth: 23888 bytes left
[ 1038.961109][    C0] hrtimer: interrupt took 10166189 ns