[ 674.437285][T22052] ip (22052) used greatest stack depth: 23536 bytes left [ 677.857777][T22091] gre: GRE over IPv4 demultiplexor driver [ 677.922417][T22091] ip_gre: GRE over IPv4 tunneling driver [ 792.956428][ C1] hrtimer: interrupt took 5495261 ns