[   12.912021][  T110] su (110) used greatest stack depth: 23568 bytes left
[   12.912041][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   12.912043][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[   12.912045][  T110] preempt_count: 2, expected: 0
[   12.912046][  T110] RCU nest depth: 0, expected: 0
[   12.912047][  T110] locks held by su/110: 5, last CPU#0:
[   12.912049][  T110]  #0: ffffffff85a027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   12.912062][  T110]  #1: ffffffff85b69cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   12.912068][  T110]  #2: ffffffff85b69d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   12.912071][  T110]  #3: ffffffff85a89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   12.912075][  T110]  #4: ffffffff85a89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0
[   12.912079][  T110] irq event stamp: 167694
[   12.912080][  T110] hardirqs last  enabled at (167693): [<ffffffff8296d546>] __down_trylock_console_sem+0x86/0xa0
[   12.912083][  T110] hardirqs last disabled at (167694): [<ffffffff829735f4>] console_emit_nex