[  894.336157][ T6750] gre: GRE over IPv4 demultiplexer driver
[  894.362577][ T6750] ip_gre: GRE over IPv4 tunneling driver
[  900.150072][ T6807] tc (6807) used greatest stack depth: 24168 bytes left
[  954.659157][    C0] hrtimer: interrupt took 4942149 ns