[    1.859931] ip (256) used greatest stack depth: 12392 bytes left
[    2.322551] ip (287) used greatest stack depth: 12344 bytes left
[   55.695745] netem: version 1.3
[  433.479511] ip (8091) used greatest stack depth: 12288 bytes left
[  591.841638] tc (12965) used greatest stack depth: 11936 bytes left