[    2.047904] ip (258) used greatest stack depth: 12392 bytes left
[    2.458014] ip (287) used greatest stack depth: 12344 bytes left
[   55.939591] netem: version 1.3
[  536.822146] ip (11475) used greatest stack depth: 12304 bytes left
[  590.165167] tc (12617) used greatest stack depth: 11936 bytes left