[  670.321776][  T110] su (110) used greatest stack depth: 23024 bytes left
[  670.321791][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[  670.321794][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[  670.321795][  T110] preempt_count: 2, expected: 0
[  670.321796][  T110] RCU nest depth: 0, expected: 0
[  670.321797][  T110] INFO: lockdep is turned off.
[  670.321798][  T110] irq event stamp: 136758
[  670.321799][  T110] hardirqs