[   85.229718][  T118] su (118) used greatest stack depth: 22992 bytes left
[   85.229745][  T118] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   85.229747][  T118] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 118, name: su
[   85.229749][  T118] preempt_count: 2, expected: 0
[   85.229750][  T118] RCU nest depth: 0, expected: 0
[   85.229751][  T118] locks held by su/118: 5, last CPU#0:
[   85.229753][  T118]  #0: ffffffffb8a167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0
[   85.229765][  T118]  #1: ffffffffb8b7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0
[   85.229770][  T118]  #2: ffffffffb8b7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710
[   85.229774][  T118]  #3: ffffffffb8a9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60
[   85.229778][  T118]  #4: ffffffffb8a9d660 (printk_legacy_map-