[   99.251270][  T118] su (118) used greatest stack depth: 24048 bytes left
[   99.251290][  T118] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   99.251292][  T118] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 118, name: su
[   99.251294][  T118] preempt_count: 2, expected: 0
[   99.251294][  T118] RCU nest depth: 0, expected: 0
[   99.251295][  T118] locks held by su/118: 5, last CPU#3:
[   99.251297][  T118]  #0: ffffffffac2167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   99.251308][  T118]  #1: ffffffffac37ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   99.251313][  T118]  #2: ffffffffac37de38 (console_srcu){....}-{0:0}, at: console_flush_one_r