[    1.908680] ip (258) used greatest stack depth: 12392 bytes left
[    2.311193] ip (289) used greatest stack depth: 12344 bytes left
[    9.490392] ip (921) used greatest stack depth: 12288 bytes left
[   55.606576] netem: version 1.3
[   88.869029] ip (3304) used greatest stack depth: 12192 bytes left
[  404.705230] ip (9034) used greatest stack depth: 12064 bytes left
[  671.261411] pm_nl_ctl (18729) used greatest stack depth: 11872 bytes left