[   13.503384][  T110] su (110) used greatest stack depth: 24296 bytes left
[   13.503401][  T110] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   13.503403][  T110] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 110, name: su
[   13.503405][  T110] preempt_count: 2, expected: 0
[   13.503406][  T110] RCU nest depth: 0, expected: 0
[   13.503407][  T110] INFO: lockdep is turned off.
[   13.503408][  T110] irq event stamp: 0
[   13.503409][  T110] hardirqs last  enabled at (0): [<0000000000000000>] 0x0
[   13.503414][  T110] hardirqs last disabled at (0): [<ffffffffb1ba848d>] copy_process+0x1ccd/0x6240
[   13.503420][  T110] softirqs last  enabled at (0): [<ffffffffb1ba84e1>] copy_process+0x1d21/0x6240
[   13.503422][  T110] softirqs last disabled at (0): [<0000000000000000>] 0x0
[   13.503424][  T110] Preemption disabled at:
[   13.503424][  T110] [<0000000000000000>] 0x0
[   13.503429][  T110] CPU: 0 UID: 0 PID: 110 Comm: su Tainted: