[   18.176352][  T162] su (162) used greatest stack depth: 24296 bytes left
[   18.176371][  T162] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   18.176374][  T162] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 162, name: su
[   18.176376][  T162] preempt_count: 2, expected: 0
[   18.176377][  T162] RCU nest