[   14.466721][  T118] su (118) used greatest stack depth: 24264 bytes left
[   14.466738][  T118] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322
[   14.466740][  T118] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 118, name: su
[   14.466742][  T118] preempt_count: 2, expected: 0
[   14.466743][  T118] RCU nest depth: 0, expected: 0
[   14.466744][  T118] INFO: lockdep is turned off.
[   14.466745][  T118] irq event stamp: 0
[   14.466746][  T118] hardirqs last  enabled at (0): [<0000000000000000>] 0x0
[   14.466750][  T118] hardirqs last disabled at (0): [<ffffffff959be57b>] copy_process+0x1d3b/0x62b0
[   14.466756][  T118] softirqs last  enabled at (0): [<ffffffff959be5cf>] copy_process+0x1d8f/0x62b0