[   11.221455][  T117] su (117) used greatest stack depth: 24072 bytes left
[   11.221472][  T117] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   11.221474][  T117] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 117, name: su
[   11.221475][  T117] preempt_count: 2, expected: 0
[   11.221476][  T117] RCU nest depth: 0, expected: 0
[   11.221477][  T117] locks held by su/117: 5, last CPU#0:
[   11.221479][  T117]  #0: ffffffff8fa167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   11.221490][  T117]  #1: ffffffff8fb7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/