[    1.875643] ip (256) used greatest stack depth: 12896 bytes left
[    1.907181] ip (259) used greatest stack depth: 12392 bytes left
[    2.277714] ip (287) used greatest stack depth: 12360 bytes left
[    2.387725] ip (296) used greatest stack depth: 12344 bytes left
[   55.731547] netem: version 1.3
[  609.067337] ip (13055) used greatest stack depth: 12192 bytes left
[  635.255883] tc (13805) used greatest stack depth: 11936 bytes left