[    2.161497] ip (286) used greatest stack depth: 12360 bytes left
[   10.093822] ip (886) used greatest stack depth: 12344 bytes left
[   44.675401] ip (2149) used greatest stack depth: 12288 bytes left
[   52.545047] netem: version 1.3
[  538.854705] ip (11488) used greatest stack depth: 12160 bytes left