[  155.655604][  T112] su (112) used greatest stack depth: 24104 bytes left
[  155.655620][  T112] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[  155.655622][  T112] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 112, name: su
[  155.655624][  T112] preempt_count: 2, expected: 0
[  155.655625][  T112] RCU nest depth: 0, expected: 0
[  155.655625][  T112] INFO: lockdep is turned off.
[  155.655627][  T112] irq event stamp: 129964
[  155.655628][  T112] hardirqs last  enabled at (129963): [<ffffffffa9147483>] _raw_spin_unlock_irqrestore+0x53/0x80
[  155.655637][  T112] hardirqs last disabled at (129964): [<ffffffffa9129b26>] __schedule+0x1246/0x20e0