[   68.453767][  T111] su (111) used greatest stack depth: 24104 bytes left
[   68.453787][  T111] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   68.453789][  T111] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 111, name: su
[   68.453790][  T111] preempt_count: 2, expected: 0
[   68.453791][  T111] RCU nest depth: 0, expected: 0
[   68.453792][  T111] locks held by su/111: 5,