[   90.337566][  T117] su (117) used greatest stack depth: 23504 bytes left
[   90.337583][  T117] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   90.337585][  T117] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 117, name: su
[   90.337586][  T117] preempt_count: 2, expected: 0
[   90.337587][  T117] RCU nest depth: 0, expected: 0
[   90.337588][  T117] locks held by su/117: 5, last CPU#2:
[   90.337590][  T117]  #0: ffffffffa98167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   90.337601][  T117]  #1: ffffffffa997ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   90.337606][  T117]  #2: ffffffffa997de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   90.337610][  T117]  #3: ffffffffa989d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   90.337614][  T117]  #4: ffffffffa989d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0
[   90.337617][  T117] irq event stamp: 153876
[   90.337618][  T117] hardirqs last  enabled at (153875): [<ffffffffa5d86626>] __down_trylock_console_sem+0x86/0xa0
[   90.337621][  T117] hardirqs last disabled at (153876): [<ffffffffa5d8c6c4>] console_emit_next_record+0x3d4/0x4c0
[   90.337623][  T117] softirqs