[   77.808394][  T110] su (110) used greatest stack depth: 23136 bytes left
[   77.808413][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   77.808415][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[   77.808417][  T110] preempt_count: 2, expected: 0
[   77.808418][  T110] RCU nest depth: 0, expected: 0
[   77.808419][  T110] locks held by su/110: 5, last CPU#2:
[   77.808421][  T110]  #0: ffffffffaae02f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0
[   77.808434][  T110]  #1: ffffffffaaf6a440 (co