[   91.617162][  T161] su (161) used greatest stack depth: 23968 bytes left
[   91.617179][  T161] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   91.617181][  T161] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 161, name: su
[   91.617183][  T161] preempt_count: 2, expected: 0
[   91.617183][  T161] RCU nest depth: 0, expected: 0
[   91.617184][