[    2.486839] ip (216) used greatest stack depth: 12216 bytes left
[    3.759369] ip (557) used greatest stack depth: 12040 bytes left
[   52.098704] netem: version 1.3
[   58.353071] ip (4476) used greatest stack depth: 11992 bytes left
[   58.374427] ip (4485) used greatest stack depth: 11960 bytes left
[  530.230566] pm_nl_ctl (24681) used greatest stack depth: 11864 bytes left