[   10.509682][  T111] su (111) used greatest stack depth: 24104 bytes left
[   10.509699][  T111] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   10.509701][  T111] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 111, name: su
[   10.509703][  T111] preempt_count: 2, expected: 0
[   10.509704][  T111] RCU nest depth: 0, expected: 0
[   10.509705][  T111] locks held by su/111: 5, last CPU#2:
[   10.509708][  T111]  #0: ffffffffa5e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   10.509720][  T111]  #1: ffffffffa5f99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   10.509725][  T111]  #2: ffff