[   11.674405][  T117] su (117) used greatest stack depth: 23552 bytes left
[   11.674427][  T117] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   11.674430][  T117] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 117, name: su
[   11.674432][  T117] preempt_count: 2, expected: 0
[   11.674433][  T117] RCU nest depth: 0, expected: 0
[   11.674434][  T117] locks held by su/117: 5, last CPU#2: