[  114.155483][  T111] su (111) used greatest stack depth: 23968 bytes left
[  114.155504][  T111] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[  114.155506][  T111] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 111, name: su
[  114.155508][  T111] preempt_count: 2, expected: 0
[  114.155509][  T111] RCU nest depth: 0, expected: 0
[  114.155510][  T111] locks held by su/111: 5, last CPU#1:
[  114.155513][  T111]  #0: ffffffffb92027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[  114.155526][  T111]  #1: ffffffffb9399cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[  114.155531][  T111]  #2: ffffffffb9399d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[  114.155535][  T111]  #3: ffffffffb9289660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60