[    2.175632] ip (263) used greatest stack depth: 12528 bytes left
[    2.301503] ip (272) used greatest stack depth: 12320 bytes left
[   54.171530] netem: version 1.3
[  553.912310] ip (11065) used greatest stack depth: 12160 bytes left
[  643.485182] ip (13890) used greatest stack depth: 12144 bytes left