[   84.385584][  T109] su (109) used greatest stack depth: 24016 bytes left
[   84.385605][  T109] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   84.385607][  T109] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 109, name: su
[   84.385609][  T109] preempt_count: 2, expected: 0
[   84.385610][  T109] RCU nest depth: 0, expected: 0
[   84.385611][  T109] locks held by su/109: 5, last CPU#0:
[   84.385613][  T109]  #0: ffffffffa00027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   84.385626][  T109]  #1: ffffffffa0169cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   84.385631][  T109]  #2: ffffffffa0169d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   84.385635][  T109]  #3: ffffffffa0089660 (co