[    2.135309] ip (185) used greatest stack depth: 12416 bytes left
[    2.162031] ip (193) used greatest stack depth: 12112 bytes left
[    5.932935] ip (1340) used greatest stack depth: 12080 bytes left
[   50.453848] netem: version 1.3
[  543.467388] pm_nl_ctl (24826) used greatest stack depth: 11944 bytes left