[    2.516665] ip (213) used greatest stack depth: 12344 bytes left
[    2.639303] ip (253) used greatest stack depth: 12184 bytes left
[    4.997898] ip (886) used greatest stack depth: 12056 bytes left
[   52.112603] netem: version 1.3
[  530.407619] pm_nl_ctl (24676) used greatest stack depth: 11816 bytes left