[    2.336393] ip (250) used greatest stack depth: 12912 bytes left
[    2.563741] ip (262) used greatest stack depth: 12600 bytes left
[    2.801100] ip (281) used greatest stack depth: 12360 bytes left
[    2.910078] ip (290) used greatest stack depth: 12352 bytes left
[    8.739613] ip (753) used greatest stack depth: 12344 bytes left
[   54.362963] netem: version 1.3
[  355.786332] ip (5443) used greatest stack depth: 12312 bytes left
[  536.876465] ip (10453) used greatest stack depth: 12296 bytes left