linux-kernel - Re: [git pull] kmemcheck

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Message-ID: <20080430200638.GA14164@elte.hu>
Date:	Wed, 30 Apr 2008 22:06:38 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Roland Dreier <rdreier@...co.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Vegard Nossum <vegard.nossum@...il.com>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Christoph Lameter <clameter@....com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [git pull] kmemcheck


* Roland Dreier <rdreier@...co.com> wrote:

>  >       kmemcheck: enable in the x86 Kconfig
> 
> This patch does:
> 
>  > +config KMEMCHECK
>  > +	bool "kmemcheck: trap use of uninitialized memory"
>  > +	depends on X86_32
> 
> So it's only possible to select kmemcheck on 32-bit builds, But you 
> also seem to have 64-bit stuff, eg
> 
>  >       kmemcheck: support for 64-bit
>  >       kmemcheck: add missing pte_hidden() for x86-64
> 
> so is the Kconfig patch slightly out-of-date?

no, 64-bit kmemcehck is still work in progress, so it's not Kconfig 
selectable.

	Ingo
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