[   94.354630][  T111] su (111) used greatest stack depth: 23936 bytes left
[   94.354648][  T111] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   94.354650][  T111] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 111, name: su
[   94.354652][  T111] preempt_count: 2, expected: 0
[   94.354653][  T111] RCU nest depth: 0, expected: 0
[   94.354654][  T111] locks held by su/111: 5, last CPU#0:
[   94.354657][  T111]  #0: ffffffffae4127b8 (low_water_lock){+.