[    1.836759] ip (248) used greatest stack depth: 12392 bytes left
[    2.004157] ip (260) used greatest stack depth: 12344 bytes left
[    6.727995] ip (659) used greatest stack depth: 12296 bytes left
[   50.320048] netem: version 1.3
[  341.558504] ip (5114) used greatest stack depth: 12040 bytes left