[   18.040527][  T109] su (109) used greatest stack depth: 24104 bytes left
[   18.040544][  T109] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   18.040545][  T109] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 109, name: su
[   18.040547][  T109] preempt_count: 2, expected: 0
[   18.040548][  T109] RCU nest depth: 0, expected: 0
[   18.040549][  T109] locks held by su/109: 5, last CPU#2:
[   18.040551][  T109]  #0: ffffffff8a8027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   18.040563][  T109]  #1: ffffffff8a969cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   18.040568][  T109]  #2: ffffffff8a969d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   18.040571][  T109]  #3: ffffffff8a889660 (co