[    2.549614] ip (293) used greatest stack depth: 12272 bytes left
[   45.749238] ip (2153) used greatest stack depth: 12000 bytes left
[   60.496077] netem: version 1.3
[  640.219683] tc (15599) used greatest stack depth: 11936 bytes left
[  703.497206] pm_nl_ctl (18735) used greatest stack depth: 11880 bytes left