[   15.784562][  T110] su (110) used greatest stack depth: 24104 bytes left
[   15.784584][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   15.784586][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[   15.784588][  T110] preempt_count: 2, expected: 0
[   15.784590][  T110] RCU nest depth: 0, expected: 0
[   15.784591][  T110] locks held by su/110: 5, last CPU#2:
[   15.784594][  T110]  #0: ffffffffba6027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   15.784609][  T110]  #1: ffffffffba769cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   15.784616][  T110]  #2: ffffffffba769d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   15.784621][  T110]  #3: ffffffffba689660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   15.784626][  T110]  #4: ffffffffba689560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0
[   15.784631][  T110] irq event stamp: 172436
[   15.784632][  T110] hardirqs last  enabled at (172435): [<ffffffffb756d546>] __down_trylock_console_sem+0x86/0xa0
[   15.784636][