[    9.694172][  T110] su (110) used greatest stack depth: 24104 bytes left
[    9.694192][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[    9.694193][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[    9.694195][  T110] preempt_count: 2, expected: 0
[    9.694196][  T110] RCU nest depth: 0, expected: 0
[    9.694197][  T110] locks held by su/110: 5, last CPU#2:
[    9.694199][  T110]  #0: ffffffff8fc02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0
[    9.694214][  T110]  #1: ffff