[   14.017364][  T119] su (119) used greatest stack depth: 23776 bytes left
[   14.017381][  T119] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   14.017383][  T119] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 119, name: su
[   14.017384][  T119] preempt_count: 2, expected: 0
[   14.017385][  T119] RCU nest depth: 0, expected: 0
[   14.017386][  T119] locks held by su/119: 5, last CPU#1:
[   14.017388][  T119]  #0: ffffffff8e4027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   14.017399][  T119]  #1: ffffffff8e599dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   14.017405][  T119]  #2: ffffffff8e599e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x71