[   12.748432][  T118] su (118) used greatest stack depth: 23328 bytes left
[   12.748449][  T118] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   12.748451][  T118] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 118, name: su
[   12.748452][  T118] preempt_count: 2, expected: 0
[   12.748453][  T118] RCU nest depth: 0, expected: 0
[   12.748454][  T118] locks held by su/118: 5, last CPU#1:
[   12.748456][  T118]  #0: ffffffff87c167b8 (low_water_lock){+.