[    2.347877] ip (276) used greatest stack depth: 12360 bytes left
[    2.527252] ip (294) used greatest stack depth: 12344 bytes left
[   50.957232] netem: version 1.3
[  283.663284] ip (4815) used greatest stack depth: 12160 bytes left
[  579.469779] tc (12617) used greatest stack depth: 11936 bytes left