[   16.375504][  T110] su (110) used greatest stack depth: 23776 bytes left
[   16.375523][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   16.375525][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[   16.375526][  T110] preempt_count: 2, expected: 0
[   16.375527][  T110] RCU nest depth: 0, expected: 0
[   16.375528][  T110] locks held by su/110: 5, last CPU#1:
[   16.375531][  T110]  #0: ffffffffb78027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   16.375543][  T110]  #1: ffffffffb7969cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0