[    1.643004] ip (253) used greatest stack depth: 12224 bytes left
[    6.271824] ip (795) used greatest stack depth: 11984 bytes left
[   21.656971] ip (1423) used greatest stack depth: 11928 bytes left
[   50.480522] netem: version 1.3
[  603.471713] pm_nl_ctl (18825) used greatest stack depth: 11872 bytes left