[  153.947148][  T110] su (110) used greatest stack depth: 22992 bytes left
[  153.947167][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[  153.947169][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[  153.947171][  T110] preempt_count: 2, expected: 0
[  153.947172][  T110] RCU nest depth: 0, expected: 0
[  153.947173][  T110] locks held by su/110: 5, last CPU#3:
[  153.947175][  T110]  #0: ffffffffb9402f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0
[  153.947187][  T110]  #1: ffffffffb956a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[  153.947192][