[   12.254437] ip (215) used greatest stack depth: 12312 bytes left
[   12.382931] ip (256) used greatest stack depth: 12080 bytes left
[   16.538466] ip (1383) used greatest stack depth: 12008 bytes left
[   61.903869] netem: version 1.3
[  553.604135] pm_nl_ctl (24860) used greatest stack depth: 11864 bytes left