[   63.472424][  T109] su (109) used greatest stack depth: 23776 bytes left
[   63.472448][  T109] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   63.472450][  T109] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 109, name: su
[   63.472453][  T109] preempt_count: 2, expected: 0
[   63.472454][  T109] RCU nest depth: 0, expected: 0
[   63.472456][  T109] locks held by su/109: 5, last CPU#3:
[   63.472459][  T109]  #0: ffffffffb9a027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   63.472474][  T109]  #1: ffffffffb9b69cc0 (console_lock){+.+.}-{0:0}, at: vpr