[    1.732860] ip (268) used greatest stack depth: 12408 bytes left
[    1.953475] ip (295) used greatest stack depth: 12392 bytes left
[    2.927903] ip (421) used greatest stack depth: 12232 bytes left
[    2.994048] ip (430) used greatest stack depth: 12216 bytes left
[    3.704320] ip (524) used greatest stack depth: 12168 bytes left
[   50.885966] netem: version 1.3
[  645.911120] pm_nl_ctl (20242) used greatest stack depth: 11864 bytes left