[   11.274760][  T118] su (118) used greatest stack depth: 24072 bytes left
[   11.274783][  T118] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   11.274786][  T118] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 118, name: su
[   11.274788][  T118] preempt_count: 2, expected: 0
[   11.274790][  T118] RCU nest depth: 0, expected: 0
[   11.274791][  T118] locks held by su/118: 5, last CPU#1:
[   11.274794][  T118]  #0: ffffffffb82167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   11.274808][  T118]  #1: ffffffffb837ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0