[    2.591318] ip (286) used greatest stack depth: 12360 bytes left
[    2.697775] ip (295) used greatest stack depth: 12344 bytes left
[   26.471522] ip (1204) used greatest stack depth: 12304 bytes left
[   56.373345] netem: version 1.3
[  541.390932] ip (11449) used greatest stack depth: 12192 bytes left