[  524.010008][  T109] su (109) used greatest stack depth: 24104 bytes left
[  524.010032][  T109] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[  524.010035][  T109] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 109, name: su
[  524.010038][  T109] preempt_count: 2, expected: 0
[  524.010039][  T109] RCU nest depth: 0, expected: 0
[  524.010041][  T109] locks held by su/109: 5, last CPU#1:
[  524.010044][  T109]  #0: ffffffff8d8027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[  524.010060][  T109]  #1: ffffffff8d969cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[  524.010067][  T109]  #2: ffffffff8d969d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[  524.010073][  T109]  #3: ffffffff8d889660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[  524.010079][  T109]  #4: ffffffff8d889560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0