[   68.915635][  T118] su (118) used greatest stack depth: 24072 bytes left
[   68.915653][  T118] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   68.915654][  T118] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 118, name: su
[   68.915656][  T118] preempt_count: 2, expected: 0
[   68.915657][  T118] RCU nest depth: 0, expected: 0
[   68.915658][  T118] locks held by su/118: 5, last CPU#3:
[   68.915660][  T118]  #0: ffffffffae6167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   68.915671][  T118]  #1: ffffffffae77ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   68.915676][  T118]  #2: ffffffffae77de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   68.915680][  T118]  #3: ffffffffae69d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   68.915684][  T118]  #4: ffffffffae69d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0
[   68.915688][  T118] irq event stamp: 175506
[   68.915688][  T118] hardirqs last  enabled at (175505): [<ffffffffaab86626>] __down_trylock_console_sem+0x86/0xa0
[   68.915691][  T118] hardirqs last disabled at (175506): [<ffffffffaab8c6c4>] console_emit_next_record+0x3d4/0x4c0
[   68.915693][  T118] softirqs last  enabled at (174458): [<ffffffffaa9e0d0c>] handle_softirqs+