[    1.426285] ip (267) used greatest stack depth: 12392 bytes left
[    1.555258] ip (285) used greatest stack depth: 12248 bytes left
[    1.618817] ip (294) used greatest stack depth: 12216 bytes left
[   37.269283] ip (2133) used greatest stack depth: 12120 bytes left
[   49.218567] netem: version 1.3
[  622.811042] pm_nl_ctl (20242) used greatest stack depth: 11856 bytes left