[  641.452419][ T6770] tc (6770) used greatest stack depth: 23416 bytes left
[  643.657054][ T6908] tc (6908) used greatest stack depth: 23376 bytes left
[  647.302699][ T7072] gre: GRE over IPv4 demultiplexer driver
[  647.311015][ T7072] ip_gre: GRE over IPv4 tunneling driver