[    2.113692] ip (181) used greatest stack depth: 12296 bytes left
[    2.152529] ip (194) used greatest stack depth: 12096 bytes left
[    2.675691] ip (353) used greatest stack depth: 12064 bytes left
[   50.103132] netem: version 1.3
[   58.236420] ip (4424) used greatest stack depth: 12048 bytes left
[  115.983456] ip (5176) used greatest stack depth: 12024 bytes left
[  540.158250] pm_nl_ctl (24835) used greatest stack depth: 11864 bytes left