[   17.214746][  T118] su (118) used greatest stack depth: 24104 bytes left
[   17.214764][  T118] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   17.214766][  T118] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 118, name: su
[   17.214768][  T118] preempt_count: 2, expected: 0
[   17.214769][  T118] RCU nest depth: 0, expected: 0
[   17.214770][  T118] locks held by su/118: 5, last CPU#0:
[   17.214772][  T118]  #0: ffffffffa92027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   17.214784][  T118]  #1: ffffffffa9399dc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   17.214790][  T118]  #2: ffffffffa9399e38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   17.214794][  T118]  #3: ffffffffa9289760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   17.214798][  T118]  #4: ffffffffa9289660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0
[   17.214802][  T118] irq event stamp: 152886
[   17.214803][  T118] hardirqs last  enabled at (152885): [<ffffffffa59760f6>] __down_trylock_console_sem+0x86/0xa0
[   17.214805][  T118] hardirqs last disabled at (152886): [<ffffffffa597c398>] console_emit_next_record+0x3f8/0x4f0
[   17.214807][  T118] softirqs last  enabled at (150886): [<ffffffffa57d0d4c>] handle_softirqs+0x67c/0x900
[   17.214809][  T118] softirqs last disabled at (149455): [<ffffffffa57d1185>] __irq_exit_rcu+0x145/0x1c0
[   17.214812][  T118] Preemption disabled at:
[   17.214812][  T118] [<0000000000000000>] 0x0
[   17.214820][