[   12.404172][  T109] su (109) used greatest stack depth: 24104 bytes left
[   12.404191][  T109] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   12.404193][  T109] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 109, name: su
[   12.404195][  T109] preempt_count: 2, expected: 0
[   12.404196][  T109] RCU nest depth: 0, expected: 0
[   12.404197][  T109] locks held by su/109: 5, last CPU#3:
[   12.404199][  T109]  #0: ffffffff85e027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   12.404210][  T109]  #1: ffffffff85f69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   12.404215][  T109]  #2: ffffffff85f69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   12.404218][  T109]  #3: ffffffff85e89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   12.404221][  T109]  #4: ffffffff85e89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0
[   12.404225][  T109] irq event stamp: 166688
[   12.404225][  T109] hardirqs