[    2.504983] ip (294) used greatest stack depth: 12272 bytes left
[   46.693657] netem: version 1.3
[  540.490289] ip (15464) used greatest stack depth: 12240 bytes left
[  542.712915] tc (15680) used greatest stack depth: 11912 bytes left
[  599.769866] pm_nl_ctl (18823) used greatest stack depth: 11864 bytes left