[   13.820528][  T119] su (119) used greatest stack depth: 24096 bytes left
[   13.820544][  T119] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   13.820546][  T119] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 119, name: su
[   13.820548][  T119] preempt_count: 2, expected: 0
[   13.820549][  T119] RCU nest depth: 0, expected: 0
[   13.820549][  T119] locks held by su/119: 5, last CPU#2:
[   13.820551][  T119]  #0: ffff