Re: PAE Kernel to generic
On Sat, 20 Aug 2011 12:42:52 -0500, Stan Hoeppner wrote:
> On 8/20/2011 4:36 AM, Camaleón wrote:
>> PAE kernel is not only convenient for more than 4 GiB of ram but is
>> also enables SMP (multi-processing) and NX bit (a security measure). In
>> brief, just keep it as is :-)
>
> To clarify, the *Debian* PAE kernel package in question was built with
> these kernel options enabled.
In fact, the same happens in most of the pre-made "-pae" kernels I've
seen in other distributions. Just to clarify this is not only for Debian
kernels.
> Enabling PAE in .config before doing a kernel build does not
> automatically enable SMP and the other things mentioned--they are all
> separate options.
Enabling "CONFIG_X86_PAE" just enables "CONFIG_X86_PAE". Yeep, that makes
sense and I hope it does automatically enable another options that were
not manually set... But now you mention, "NX bit" requires PAE to be "on"
so I guess it will be automatically marked if you enable this.
> Just making this clear so someone doesn't read this and assume "PAE" =
> "SMP" in the Linux world in general.
Sure, I was referring specifically to "linux-image-686-pae", I didn't
think the OP was talking about compiled/home made kernels.
And now you also mention this, another distributions provide a set of
kernels for their users in a more flexible way: there are desktop kernels
(which enable pae, nx bit and smp) and there are also plain kernels
(which enable smp but keep pae and nx bit turned off).
Greetings,
--
Camaleón
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