[    2.124286] ip (272) used greatest stack depth: 12368 bytes left
[    2.319529] ip (290) used greatest stack depth: 12352 bytes left
[   10.319447] ip (963) used greatest stack depth: 12072 bytes left
[   51.167235] netem: version 1.3
[  693.522912] kworker/dying (813) used greatest stack depth: 11968 bytes left