[  259.581179][  T109] su (109) used greatest stack depth: 24104 bytes left
[  259.581195][  T109] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[  259.581197][  T109] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 109, name: su
[  259.581199][  T109] preempt_count: 2, expected: 0
[  259.581200][  T109] RCU nest depth: 0, expected: 0