Re: [PATCH] ARM: exynos_defconfig: Enable CONFIG_LOCKUP_DETECTOR
From: Krzysztof Kozlowski
Date: Wed Jan 07 2015 - 04:04:47 EST
On wto, 2015-01-06 at 23:12 +0530, Anand Moon wrote:
> ARM Enable CONFIG_LOCKUP_DETECTOR to validaion of kernel locks
s/validaion/validation/
This config item helps getting some useful information when lockup
happens. If you want to validate locks then probably you want
PROVE_LOCKING... but its overhead is larger.
Anyway the overhead of LOCKUP_DETECTOR is small and multi_v7_defconfig
has it enabled so I guess exynos may do it as well.
Could you only fix up the commit msg?
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Best regards,
Krzysztof
>
> Tested on Exynos5422 ODROID XU3 board.
>
> Signed-off-by: Anand Moon <moon.linux@xxxxxxxxx>
> ---
> arch/arm/configs/exynos_defconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
> index 5ef14de..ecd9987 100644
> --- a/arch/arm/configs/exynos_defconfig
> +++ b/arch/arm/configs/exynos_defconfig
> @@ -178,6 +178,7 @@ CONFIG_PRINTK_TIME=y
> CONFIG_DEBUG_FS=y
> CONFIG_MAGIC_SYSRQ=y
> CONFIG_DEBUG_KERNEL=y
> +CONFIG_LOCKUP_DETECTOR=y
> CONFIG_DETECT_HUNG_TASK=y
> CONFIG_DEBUG_RT_MUTEXES=y
> CONFIG_DEBUG_SPINLOCK=y
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