[   12.070971][  T109] su (109) used greatest stack depth: 24104 bytes left
[   12.070989][  T109] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   12.070991][  T109] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 109, name: su
[   12.070992][  T109] preempt_count: 2, expected: 0
[   12.070993][  T109] RCU nest depth: 0, expected: 0
[   12.070994][  T109] locks held by su/109: 5, last CPU#0:
[   12.070997][  T109]  #0: ffffffffa34027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   12.071009][  T109]  #1: ffffffffa3569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   12.071014][  T109]  #2: ffffffffa3569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   12.071018][  T109]  #3: ffffffffa3489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   12.071021][  T109]  #4: ffffffffa3489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x