BUG: at kernel/fork.c:994 copy_process()
 [<c1005d9e>] show_trace_log_lvl+0x1a/0x2f
 [<c1006347>] show_trace+0x12/0x14
 [<c10063c2>] dump_stack+0x16/0x18
 [<c101d040>] copy_process+0x195/0x1245
 [<c101e140>] do_fork+0x50/0x117
 [<c1003351>] kernel_thread+0x8e/0x96
 [<c102c6fd>] __call_usermodehelper+0x2d/0x46
 [<c102cd4b>] run_workqueue+0x89/0x145
 [<c102d70d>] worker_thread+0xd5/0x102
 [<c102ff23>] kthread+0xb3/0xdc
 [<c10058df>] kernel_thread_helper+0x7/0x10