[   12.299184] ip (220) used greatest stack depth: 12720 bytes left
[   12.336365] ip (228) used greatest stack depth: 12592 bytes left
[   12.360446] ip (237) used greatest stack depth: 12560 bytes left
[   12.384492] ip (247) used greatest stack depth: 12504 bytes left
[   12.967605] ip (387) used greatest stack depth: 12128 bytes left
[   16.559322] ip (1374) used greatest stack depth: 12024 bytes left
[   61.929323] netem: version 1.3
[  572.208654] pm_nl_ctl (24861) used greatest stack depth: 11864 bytes left