[   11.993971][  T110] su (110) used greatest stack depth: 24104 bytes left
[   11.993990][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   11.993992][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[   11.993994][  T110] preempt_count: 2, expected: 0
[   11.993995][  T110] RCU nest depth: 0, expected: 0
[   11.993996][  T110] locks held by su/110: 5, last CPU#0:
[   11.993998][  T110]  #0: ffffffff85e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   11.994010][  T110]  #1: ffffffff85f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0