[   11.780189][  T118] su (118) used greatest stack depth: 23976 bytes left
[   11.780205][  T118] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   11.780207][  T118] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 118, name: su
[   11.780209][  T118] preempt_count: 2, expected: 0
[   11.780209][  T118] RCU nest depth: 0, expected: 0
[   11.780210][  T118] locks held by su/118: 5, last CPU#1:
[   11.780212][  T118]  #0: ffffffff946167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   11.780223][  T118]  #1: ffffffff9477ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   11.780228][  T118]  #2: ffffffff9477de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   11.780232][  T118]  #3: ffffffff9469d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   11.780236][  T118]  #4: ffffffff9469d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0
[   11.780240][  T118] irq event stamp: 173970
[   11.780241][  T118] hardirqs last  enabled at (173969): [<ffffffff90b86626>] __down_trylock_console_sem+0x86/0xa0
[   11.780244][  T118] hardirqs last disabled at (173970): [<ffffffff90b8c6c4>] console_emit_next_record+0x3d4/0x4c0
[   11.780246][  T118] softirqs last  enabled at (173782): [<ffffffff909e0d0c>] handle_softirqs+0x67c/0x900
[   11.780248][  T118] softirqs last disabled at (173777): [<ffffffff909e1145>] __irq_exit_rcu+0x145/0x1c0