[   47.304115][  T110] su (110) used greatest stack depth: 23584 bytes left
[   47.304133][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   47.304135][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[   47.304136][  T110] preempt_count: 2, expected: 0
[   47.304137][  T110] RCU nest depth: 0, expected: 0
[   47.304138][  T110] locks held by su/110: 5, last CPU#0:
[   47.304141][  T110]  #0: ffffffffa44267b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   47.304153][  T110]  #1: ffffffffa458dcc0 (console_lock){+.+.