[    2.469612] ip (291) used greatest stack depth: 12384 bytes left
[   49.836836] ip (2288) used greatest stack depth: 12224 bytes left
[   63.231412] netem: version 1.3
[  641.629548] tc (15680) used greatest stack depth: 11936 bytes left
[  708.500623] pm_nl_ctl (18824) used greatest stack depth: 11880 bytes left