linux-kernel - Re: [PATCH 2/3] lib/Kconfig.debug: disable LOCK_DEBUGGING

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Message-ID: <33e838a0-dd84-48b2-b2d6-aea173ab8ced@intel.com>
Date: Fri, 21 Jun 2024 09:16:16 -0700
From: Dave Hansen <dave.hansen@...el.com>
To: Alexander Potapenko <glider@...gle.com>
Cc: elver@...gle.com, dvyukov@...gle.com, dave.hansen@...ux.intel.com,
 peterz@...radead.org, akpm@...ux-foundation.org, x86@...nel.org,
 linux-kernel@...r.kernel.org, kasan-dev@...glegroups.com,
 "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: Re: [PATCH 2/3] lib/Kconfig.debug: disable LOCK_DEBUGGING_SUPPORT
 under KMSAN

On 6/21/24 02:49, Alexander Potapenko wrote:
>  config LOCK_DEBUGGING_SUPPORT
>  	bool
> -	depends on TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
> +	depends on TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !KMSAN
>  	default y

This kinda stinks.  It ends up doubling the amount of work that ks