[patch] turn on might_sleep() in early bootup code too

[Andrew Morton]

Ingo Molnar <mingo at elte.hu> wrote:
>
>  enable might_sleep() checks even in early bootup code (when system_state 
>  != SYSTEM_RUNNING). There's also a new config option to turn this off:
>  CONFIG_DEBUG_SPINLOCK_SLEEP_EARLY_BOOTUP_WORKAROUND
>  while most other architectures.

I get just the one on ppc64:


Debug: sleeping function called from invalid context at include/asm/semaphore.h:62
in_atomic():1, irqs_disabled():1
Call Trace:
[C0000000004EFD20] [C00000000000F660] .show_stack+0x5c/0x1cc (unreliable)
[C0000000004EFDD0] [C000000000053214] .__might_sleep+0xbc/0xe0
[C0000000004EFE60] [C000000000413D1C] .lock_kernel+0x50/0xb0
[C0000000004EFEF0] [C0000000004AC574] .start_kernel+0x1c/0x278
[C0000000004EFF90] [C0000000000085D4] .hmt_init+0x0/0x2c


Your fault ;)