[    2.379090] ip (286) used greatest stack depth: 12344 bytes left
[   17.820471] ip (1151) used greatest stack depth: 12192 bytes left
[   55.115093] netem: version 1.3
[  536.160187] ip (12711) used greatest stack depth: 12032 bytes left
[  647.937076] pm_nl_ctl (16717) used greatest stack depth: 11608 bytes left