[   10.957604][  T117] su (117) used greatest stack depth: 24072 bytes left
[   10.957621][  T117] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   10.957623][  T117] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 117, name: su
[   10.957625][  T117] preempt_count: 2, expected: 0
[   10.957626][  T117] RCU nest depth: 0, expected: 0
[   10.957627][  T117] locks held by su/117: 5, last CPU#2:
[   10.957629][  T117]  #0: ffffffff9fa167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   10.957641][  T117]  #1: ffffffff9fb7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   10.957646][  T117]  #2: ffffffff9fb7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710