[    1.959814] ip (264) used greatest stack depth: 12432 bytes left
[    2.321369] ip (292) used greatest stack depth: 12384 bytes left
[   12.346818] ip (1166) used greatest stack depth: 12256 bytes left
[   56.025591] netem: version 1.3
[  632.732055] tc (15684) used greatest stack depth: 11936 bytes left
[  700.130604] pm_nl_ctl (18828) used greatest stack depth: 11880 bytes left