[    9.407150][  T112] su (112) used greatest stack depth: 23776 bytes left
[    9.407165][  T112] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[    9.407167][  T112] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 112, name: su
[    9.407169][  T112] preempt_count: 2, expected: 0
[    9.407170][  T112] RCU nest depth: 0, expected: 0