[    1.648915] ip (258) used greatest stack depth: 12224 bytes left
[    3.912487] ip (507) used greatest stack depth: 12176 bytes left
[   49.996482] netem: version 1.3
[  550.634361] tc (15680) used greatest stack depth: 11928 bytes left
[  607.955471] pm_nl_ctl (18825) used greatest stack depth: 11800 bytes left