From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753391AbbAGJEk (ORCPT ); Wed, 7 Jan 2015 04:04:40 -0500 Received: from mailout1.w1.samsung.com ([210.118.77.11]:52703 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751691AbbAGJEf (ORCPT ); Wed, 7 Jan 2015 04:04:35 -0500 X-AuditID: cbfec7f5-b7fc86d0000066b7-f3-54acf6a10ad7 Message-id: <1420621470.3893.6.camel@AMDC1943> Subject: Re: [PATCH] ARM: exynos_defconfig: Enable CONFIG_LOCKUP_DETECTOR From: Krzysztof Kozlowski To: Anand Moon Cc: Russell King , Kukjin Kim , Javier Martinez Canillas , Doug Anderson , Sachin Kamat , "Rafael J. Wysocki" , Vivek Gautam , Tushar Behera , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Date: Wed, 07 Jan 2015 10:04:30 +0100 In-reply-to: <1420566151-7136-1-git-send-email-moon.linux@yahoo.com> References: <1420566151-7136-1-git-send-email-moon.linux@yahoo.com> Content-type: text/plain; charset=UTF-8 X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-version: 1.0 Content-transfer-encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrNLMWRmVeSWpSXmKPExsVy+t/xy7oLv60JMTh6U8Li7LKDbBZtVw6y Wxz9XWDR//g1s8Wmx9dYLS7vmsNmMeP8PiaL25d5La7fn8Zs8XjFW3aLK5dOsVm0/93L5sDj 0dLcw+Yxu+Eii8ff59dZPBbvecnksWlVJ5vHnWt72Dw2L6n36NuyitHj8yY5j1mzDjMFcEVx 2aSk5mSWpRbp2yVwZWy7/oa94ChnxdGOU4wNjN/Zuxg5OSQETCRuf1rLBGGLSVy4t56ti5GL Q0hgKaPE3PW3oJzPjBJ9C/exgFTxCuhJ9N67CJTg4BAW8JQ4vIwXJMwmYCyxefkSNhBbREBV 4kHrVVYQm1ngArPEys8VIDYLUHzJ1EmMIDangIvEvBMXmEFsIQFnifOXPkDVq0tMmreIGWS8 hICyRGO/G8RWQYkfk++xQJTIS2xe85Z5AqPALCQds5CUzUJStoCReRWjaGppckFxUnqukV5x Ym5xaV66XnJ+7iZGSAR93cG49JjVIUYBDkYlHl6FyWtChFgTy4orcw8xSnAwK4nwWnUChXhT EiurUovy44tKc1KLDzEycXBKNTDuCqgJ+B915OIudkam4tn5cwz95kZohLf0Ry898O5hemOT JZfCwT36yT/XS23hM1JPmid4WPj6rPf8K7KL96wrL9e2OsnEpuAnFnn0mxCv3NKpF3auvPvn c+a+atnMvKUng56IvdpiuVfA4XfRTf2tH9PZJs3f7S+QsO0167tlf5e43X0ue6BAiaU4I9FQ i7moOBEAHgGd/n4CAAA= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Best regards, Krzysztof > > Tested on Exynos5422 ODROID XU3 board. > > Signed-off-by: Anand Moon > --- > 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