[    2.102299] ip (184) used greatest stack depth: 12296 bytes left
[    2.146579] ip (197) used greatest stack depth: 12064 bytes left
[   29.903830] ip (2548) used greatest stack depth: 12048 bytes left
[   50.670506] netem: version 1.3
[  554.533789] pm_nl_ctl (24824) used greatest stack depth: 11864 bytes left