[   13.021893][  T109] su (109) used greatest stack depth: 23024 bytes left
[   13.021912][  T109] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   13.021915][  T109] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 109, name: su
[   13.021916][  T109] preempt_count: 2, expected: 0
[   13.021917][  T109] RCU nest depth: 0, expected: 0
[   13.021918][  T109] locks held by su/109: 5, last CPU#3:
[   13.021920][