[   96.224601][  T117] su (117) used greatest stack depth: 23936 bytes left
[   96.224618][  T117] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   96.224620][  T117] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 117, name: su
[   96.224622][  T117] preempt_count: 2, expected: 0
[   96.224623][  T117] RCU nest depth: 0, expected: 0
[   96.224624][  T117] locks held by su/117: 5, last CPU#3:
[   96.224626][  T117]  #0: ffffffff982167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   96.224636][  T117]  #1: ffffffff9837ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0