[   67.068038][  T110] su (110) used greatest stack depth: 23376 bytes left
[   67.068058][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   67.068060][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[   67.068062][  T110] preempt_count: 2, expected: 0
[   67.068063][  T110] RCU nest depth: 0, expected: 0
[   67.068064][  T110] locks held by su/110: 5, last CPU#3:
[   67.068066][  T110]  #0: ffffffff934027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   67.068079][  T110]  #1: ffffffff93569cc0 (console_lock){+.+.}-{0:0}, at: vpr