[   93.154856][  T110] su (110) used greatest stack depth: 23872 bytes left
[   93.154872][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   93.154874][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[   93.154875][  T110] preempt_count: 2, expected: 0
[   93.154876][  T110] RCU nest depth: 0, expected: 0
[   93.154877][  T110] locks held by su/110: 5, last CPU#0:
[   93.154879][  T110]  #0: ffffffff9d0027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   93.154891][  T110]  #1: ffffffff9d199cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   93.154896][  T110]  #2: ffffffff9d199d38 (co