[   17.214351][  T109] su (109) used greatest stack depth: 24104 bytes left
[   17.214369][  T109] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   17.214371][  T109] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 109, name: su
[   17.214373][  T109] preempt_count: 2, expected: 0
[   17.214374][  T109] RCU nest depth: 0, expected: 0
[   17.214375][  T109] locks held by su/109: 5, last CPU#0:
[   17.214377][  T109]  #0: ffffffff9ea027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   17.214388][  T109]  #1: ffffffff9eb69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   17.214393][  T109]  #2: ffffffff9eb69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   17.214397][  T109]  #3: ffffffff9ea89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   17.214400][  T109]  #4: ffffffff9ea89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0
[   17.214403][  T109] irq event stamp: 153570
[   17.214404][  T109] hardirqs last  enabled at (153569): [<ffffffff9b96d546>] __down_trylock_console_sem+0x86/0xa0
[   17.214407][  T109] hardirqs last disabled at (153570): [<ffffffff9b9735f4>] console_emit_next_record+0x3d4/0x4c0
[   17.214408][  T109] softirqs last  enabled at (151640): [<ffffffff9b7caa2c>] handle_softirqs+0x67c/0x900
[   17.214410][  T109] softirqs last disabled at (151635): [<ffffffff9b7cae65>] __irq_exit_rcu+0x145/0x1c0
[   17.214413][  T109] Preemption disabled at:
[   17.214414][  T109] [<0000000000000000>] 0x0
[   17.214420][  T109] CPU: 0 UI