[    2.598098] ip (277) used greatest stack depth: 12360 bytes left
[    2.722086] ip (286) used greatest stack depth: 12344 bytes left
[   20.495987] ip (1079) used greatest stack depth: 12192 bytes left
[   46.173762] ip (1796) used greatest stack depth: 12160 bytes left
[   58.562119] netem: version 1.3
[  615.724072] tc (12618) used greatest stack depth: 11936 bytes left