From: "Tuncer Ayaz" <tuncer.ayaz@gmail.com>
To: "Cestonaro,
Thilo (external)" <Thilo.Cestonaro.external@fujitsu-siemens.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: NonExecutable Bit in 32Bit
Date: Wed, 25 Apr 2007 08:37:33 +0200 [thread overview]
Message-ID: <4ac8254d0704242337m518d87c3y8a26df66632ea6e4@mail.gmail.com> (raw)
In-Reply-To: <4ac8254d0704242333g17972a7q2106015af946ea5@mail.gmail.com>
On 4/25/07, Tuncer Ayaz <tuncer.ayaz@gmail.com> wrote:
> On 4/25/07, Cestonaro, Thilo (external)
> <Thilo.Cestonaro.external@fujitsu-siemens.com> wrote:
> > Hey,
> >
> > > CONFIG_HIGHMEM64G=y
> > > CONFIG_HIGHMEM=y
> > > CONFIG_X86_PAE=y
> >
> > Ok in highmem it's active, whats about lowmem?
> > x86-64 is NX active for lowmem too AFAIK.
>
> It's more of an issue of having PAE enabled.
> Without PAE you are not able to use the the NX bit.
> That's the way the CPU works, not Linux.
Forgot to add:
from arch/i386/Kconfig:
config X86_PAE
bool
depends on HIGHMEM64G
default y
select RESOURCES_64BIT
> Hope this helps.
>
next prev parent reply other threads:[~2007-04-25 6:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-24 6:31 Cestonaro, Thilo (external)
2007-04-24 6:42 ` William Heimbigner
2007-04-24 7:02 ` Cestonaro, Thilo (external)
2007-04-24 7:46 ` Tuncer Ayaz
2007-04-25 6:19 ` Cestonaro, Thilo (external)
2007-04-25 6:33 ` Tuncer Ayaz
2007-04-25 6:37 ` Tuncer Ayaz [this message]
2007-04-25 6:58 ` Cestonaro, Thilo (external)
2007-04-25 9:41 ` Marat Buharov
2007-04-25 10:28 ` Cestonaro, Thilo (external)
2007-04-25 6:55 ` H. Peter Anvin
2007-04-24 12:52 ` Andi Kleen
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