[   11.479755][  T118] su (118) used greatest stack depth: 24072 bytes left
[   11.479774][  T118] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   11.479776][  T118] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 118, name: su
[   11.479777][  T118] preempt_count: 2, expected: 0
[   11.479778][  T118] RCU nest depth: 0, expected: 0
[   11.479779][  T118] locks held by su/118: 5, last CPU#1:
[   11.479781][  T118]  #0: ffffffffb4a167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   11.479792][  T118]  #1: ffff