[  226.457085][  T110] su (110) used greatest stack depth: 22960 bytes left
[  226.457106][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[  226.457108][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[  226.457109][  T110] preempt_count: 2, expected: 0
[  226.457110][  T110] RCU nest depth: 0, expected: 0
[  226.457111][  T110] locks held by su/110: 5, last CPU#0:
[  226.457113][  T110]  #0: ffffffffa0e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[  226.457126][  T110]  #1: ffffffffa0f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[  226.457132][  T110]  #2: ffffffffa0f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710