[  230.775675][  T117] su (117) used greatest stack depth: 23920 bytes left
[  230.775692][  T117] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[  230.775694][  T117] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 117, name: su
[  230.775696][  T117] preempt_count: 2, expected: 0
[  230.775697][  T117] RCU nest depth: 0, expect