[    2.081597] ip (257) used greatest stack depth: 12392 bytes left
[    2.512755] ip (286) used greatest stack depth: 12344 bytes left
[   56.424630] netem: version 1.3
[   97.519714] ip (2778) used greatest stack depth: 12296 bytes left
[  409.415404] ip (7465) used greatest stack depth: 12192 bytes left
[  550.868859] ip (11697) used greatest stack depth: 12064 bytes left