linux-kernel - Re: NonExecutable Bit in 32Bit

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Message-ID: <Pine.LNX.4.64.0704240640470.25153@server.thyself>
Date:	Tue, 24 Apr 2007 06:42:33 +0000 (GMT)
From:	William Heimbigner <icxcnika@....tar.cc>
To:	"Cestonaro, Thilo (external)" 
	<Thilo.Cestonaro.external@...itsu-siemens.com>
cc:	linux-kernel@...r.kernel.org
Subject: Re: NonExecutable Bit in 32Bit

On Tue, 24 Apr 2007, Cestonaro, Thilo (external) wrote:

> Hey,
>
> is it right, that the NX Bit is not used under i386-Arch but under x86_64-Arch?
> When yes, is there a special argument for it not to be used?
>
> Ciao Thilo
I don't think so - some i386 cpus definitely have support for the NX bit.

Would having this be supported in i386 help debugging (and security) 
significantly?

William Heimbigner
icxcnika@....tar.cc
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