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Re: [PLUG] searching through kernel features
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On Wed, Oct 29, 2008 at 11:18 AM, TuskenTower <tuskentower@gmail.com> wrote:
>
> Jim,
> Here's what I have done in the past when back tracking features.
>
> (WARNING, this is a gross over simplification of what you have to do)
> Get the latest kernel and execute "make menuconfig" and search for the
> feature(s) that you are looking for. That should result in a
> CONFIG_XYZ.
>
> Google search for "site:lkml.org + CONFIG_OPTION + Andrew Morton".
> Dates on emails should give you an idea of when the changes went into
> the MM tree and the subsequent kernel release. Of course if what you
> are looking for is not a config defined feature, then you are going to
> have to sift through changelogs or release notes.
>
> Keep in mind that different distros compile their kernels differently,
> for example the NX bit (no exec bit for stack execution) is actually
> turned off for Ubuntu, Fedora and OpenSuSE, but turned on for the
> enterprise version fo SuSE and RedHat. This means that you might have
> the right kernel, but not the right options set. You can check those
> options in /boot/config-XYZ or zcat /proc/config.gz (not always
> present).
>
> HTH
> Amul
>
Yes, that does help. Thank you!
It seems like a lot of work, but it seems effective regardless of its
tediousness. Kernel information like this is hard to come by, but can
be very useful for admins. If anyone has a better (or worse) idea on
how to find such info, then I'd like to hear it.
(the gears are sweaking)
--
Jim
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