[   10.045346] BUG: using smp_processor_id() in preemptible [00000000] code: swapper/1
[   10.045377] caller is _raw_spin_unlock_irqrestore+0x6c/0x80
[   10.045377] Backtrace:
[   10.045407] [<c003dd3c>] (dump_backtrace+0x0/0x110) from [<c04cec68>] (dump_stack+0x18/0x1c)
[   10.045407]  r7:cfc10c00 r6:cfc24000 r5:c04d1eb8 r4:00000000
[   10.045438] [<c04cec50>] (dump_stack+0x0/0x1c) from [<c0252d60>] (debug_smp_processor_id+0xc4/0xf8)
[   10.045468] [<c0252c9c>] (debug_smp_processor_id+0x0/0xf8) from [<c04d1eb8>] (_raw_spin_unlock_irqrestore+0x6c/0x80)
[   10.045468]  r7:cfc10c00 r6:00000000 r5:c0c997a0 r4:fe813010
[   10.045499] [<c04d1e4c>] (_raw_spin_unlock_irqrestore+0x0/0x80) from [<c00a80f4>] (sched_exec+0xf0/0x100)
[   10.045499]  r5:c0c997a0 r4:cfc20000
[   10.045529] [<c00a8004>] (sched_exec+0x0/0x100) from [<c0120cec>] (do_execve+0x98/0x274)
[   10.045529]  r6:c0666bb8 r5:c0666b2c r4:c059a8ba
[   10.045560] [<c0120c54>] (do_execve+0x0/0x274) from [<c003d72c>] (kernel_execve+0x40/0x88)
[   10.045560] [<c003d6ec>] (kernel_execve+0x0/0x88) from [<c00396d8>] (run_init_process+0x20/0x28)
[   10.045590]  r7:00000002 r6:c075cba4 r5:c0031c80 r4:c06c8840
[   10.045590] [<c00396b8>] (run_init_process+0x0/0x28) from [<c0039740>] (init_post+0x60/0xdc)
[   10.045621] [<c00396e0>] (init_post+0x0/0xdc) from [<c00086b4>] (kernel_init+0x1e0/0x234)
[   10.045621]  r5:c0031c80 r4:c06c8840
[   10.045651] [<c00084d4>] (kernel_init+0x0/0x234) from [<c00b36ac>] (do_exit+0x0/0x620)
[   10.045651]  r7:00000013 r6:c00b36ac r5:c00084d4 r4:00000000