[   87.876429][  T110] su (110) used greatest stack depth: 24104 bytes left
[   87.876449][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   87.876451][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[   87.876453][  T110] preempt_count: 2, expected: 0
[   87.876454][  T110] RCU nest