[    2.125878] ip (186) used greatest stack depth: 12360 bytes left
[    2.190554] ip (209) used greatest stack depth: 12112 bytes left
[    2.215013] ip (218) used greatest stack depth: 12088 bytes left
[   50.259273] netem: version 1.3
[  515.849196] pm_nl_ctl (24831) used greatest stack depth: 11944 bytes left