[    1.691530] ip (266) used greatest stack depth: 12472 bytes left
[    1.771655] ip (275) used greatest stack depth: 12376 bytes left
[    1.931818] ip (293) used greatest stack depth: 12200 bytes left
[    4.959434] ip (668) used greatest stack depth: 12120 bytes left
[   54.005916] netem: version 1.3
[  617.320512] pm_nl_ctl (20231) used greatest stack depth: 11848 bytes left