[    1.495135] ip (254) used greatest stack depth: 12296 bytes left
[    1.728724] ip (285) used greatest stack depth: 12248 bytes left
[   45.632555] netem: version 1.3
[  559.163701] tc (15681) used greatest stack depth: 11952 bytes left
[  617.031274] pm_nl_ctl (18823) used greatest stack depth: 11752 bytes left