[    1.851949] ip (254) used greatest stack depth: 12264 bytes left
[   30.779769] ip (1558) used greatest stack depth: 12136 bytes left
[   53.708141] netem: version 1.3
[  585.540191] tc (15680) used greatest stack depth: 11952 bytes left
[  643.512317] pm_nl_ctl (18823) used greatest stack depth: 11856 bytes left