[    2.101868] ip (180) used greatest stack depth: 12352 bytes left
[    2.218522] ip (221) used greatest stack depth: 12208 bytes left
[   17.076565] ip (1651) used greatest stack depth: 12112 bytes left
[   29.249355] ip (2367) used greatest stack depth: 12080 bytes left
[   30.965609] ip (2904) used greatest stack depth: 12064 bytes left
[   50.490407] netem: version 1.3
[  533.772057] pm_nl_ctl (24827) used greatest stack depth: 11944 bytes left