[   13.583827][  T118] su (118) used greatest stack depth: 24072 bytes left
[   13.583847][  T118] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   13.583855][  T118] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 118, name: su
[   13.583856][  T118] preempt_count: 2, expected: 0
[   13.583857][  T118] RCU nest depth: 0, expected: 0
[   13.583858][  T118] locks held by su/118: 5, last CPU#0:
[   13.583860][  T118]  #0: ffffffffa8c167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   13.583871][  T118]  #1: ffffffffa8d7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   13.583876][  T118]  #2: ffffffffa8d7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   13.583881][  T118]  #3: ffffffffa8c9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   13.583884][  T118]  #4: ffff