[  124.174172][  T117] su (117) used greatest stack depth: 24072 bytes left
[  124.174193][  T117] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[  124.174195][  T117] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 117, name: su
[  124.174196][  T117] preempt_count: 2, expected: 0
[  124.174197][  T117] RCU nest depth: 0, expected: 0
[  124.174198][  T117] locks held by su/117: 5, last CPU#3:
[  124.174200][  T117]  #0: ffffffffb86167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[  124.174212][  T117]  #1: ffffffffb877ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[  124.174217][  T117]  #2: ffffffffb877de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[  124.174222][  T117]  #3: ffffffffb869d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[  124.174226][  T117]  #4: ffffffffb869d660 (printk_legacy_map-wait-type-overri