[   16.407937][  T118] su (118) used greatest stack depth: 23744 bytes left
[   16.407959][  T118] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   16.407961][  T118] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 118, name: su
[   16.407963][  T118] preempt_count: 2, expected: 0
[   16.407964][  T118] RCU nest depth: 0, expected: 0
[   16.407965][  T118] locks held by su/118: 5, last CPU#3:
[   16.407967][  T118]  #0: ffffffff9c2167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   16.407979][  T118]  #1: ffffffff9c37ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   16.407984][  T118]  #2: ffffffff9c37de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   16.407989][  T118]  #3: ffffffff9c29d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   16.407993][  T118]  #4: ffffffff9c29d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0