[    2.149177] ip (183) used greatest stack depth: 12424 bytes left
[   59.349000] ip (4423) used greatest stack depth: 12352 bytes left
[   59.428223] ip (4450) used greatest stack depth: 12088 bytes left
[  553.711608] pm_nl_ctl (25047) used greatest stack depth: 11944 bytes left