[    4.899701] ip (983) used greatest stack depth: 12336 bytes left
[   17.268593] ip (1655) used greatest stack depth: 12112 bytes left
[   66.596249] ip (4620) used greatest stack depth: 12056 bytes left
[  536.973536] pm_nl_ctl (24823) used greatest stack depth: 11936 bytes left