[    2.243842] ip (256) used greatest stack depth: 12560 bytes left
[    2.281503] ip (259) used greatest stack depth: 12304 bytes left
[    2.739475] ip (288) used greatest stack depth: 12248 bytes left
[   64.153009] netem: version 1.3
[  630.879287] tc (15594) used greatest stack depth: 11936 bytes left
[  695.521492] pm_nl_ctl (18734) used greatest stack depth: 11912 bytes left