[   26.866497][  T160] su (160) used greatest stack depth: 24104 bytes left
[   26.866516][  T160] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   26.866517][  T160] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 160, name: su
[   26.866519][  T160] preempt_count: 2, expected: 0
[   26.866520][  T160] RCU nest depth: 0, expected: 0
[   26.866521][  T160] locks held by su/160: 5, last CPU#1:
[   26.866523][  T160]  #0: ffffffffa40027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   26.866536][  T160]  #1: ffffffffa4199dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   26.866541][  T160]  #2: ffffffffa4199e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710