[  101.755106][  T117] su (117) used greatest stack depth: 24072 bytes left
[  101.755124][  T117] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[  101.755126][  T117] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 117, name: su
[  101.755127][  T117] preempt_count: 2, expected: 0
[  101.755128][  T117] RCU nest depth: 0, expected: 0
[  101.755129][  T117] locks held by su/117: 5, last CPU#3:
[  101.755131][  T117]  #0: ffffffff882167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[  101.755142][  T117]  #1: ffffffff8837ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0