[   55.159024][  T111] su (111) used greatest stack depth: 24104 bytes left
[   55.159043][  T111] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   55.159045][  T111] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 111, name: su
[   55.159047][  T111] preempt_count: 2, expected: 0
[   55.159048][  T111] RCU nest depth: 0, expected: 0
[   55.159049][  T111] locks held by su/111: 5, last CPU#0:
[   55.159051][  T111]  #0: ffffffff93002f58 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x8e7/0xef0
[   55.159062][  T111]  #1: ffffffff9316a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   55.159067][  T111]  #2: ffffffff9316a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   55.159070][  T111]  #3: ffffffff93089de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60