[   11.409530][  T117] su (117) used greatest stack depth: 24072 bytes left
[   11.409550][  T117] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   11.409552][  T117] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 117, name: su
[   11.409554][  T117] preempt_count: 2, expected: 0
[   11.409555][  T117] RCU nest depth: 0, expected: 0
[   11.409556][  T117] locks held by su/117: 5, last CPU#3:
[   11.409557][  T117]  #0: ffffffff8a4167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   11.409569][  T117]  #1: ffffffff8a57ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   11.409574][  T117]  #2: ffffffff8a57de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   11.409579][  T117]  #3: ffffffff8a49d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   11.409582][  T117]  #4: ffffffff8a49d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0
[   11.409587][  T117] irq event stamp: 162914
[   11.409588][  T117] hardirqs last  enabled at (162913): [<ffffffff86986626>] __down_trylock_console_sem+0x86/0xa0
[   11.409591][  T117] hardirqs last disabled at (162914): [<ffffffff8698c6c4>] console_emit_next_record+0x3d4/0x4c0
[   11.409593][  T117] softirqs last  enabled at (162170): [<ffffffff867e0d0c>] handle_softirqs+0x67c/0x900
[   11.409595][  T117] softirqs last disabled at (162165): [<ffffffff867e1145>] __irq_exit_rcu+0x145/0x1c0
[   11.409598][  T117] Preemption disabled at:
[   11.409598][  T117] [<0000000000000000>] 0x0