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    SubjectRe: RFC: [2.6 patch] disallow modular IPv6
    On Tue, 2003-09-30 at 05:24, David S. Miller wrote:
    > What this means is that it's required for the kernel image to be up to
    > date before any modules can be built. If we can check that in the
    > build system for the sake of modversions (and if we're not doing that
    > now it's a bug we should fix) we can do it equally for ipv6.

    So this procedure is flawed then :

    1. Compile kernel. Set up everything that you need,
    IPV6 is set to 'n'
    2. Install kernel and modules to your liking, reboot to take effect.

    5 minutes later a user comes and complains that IPV6 isn't available
    and he will want it later, so you decide to compile the module for
    when he needs it and avoid another reboot :

    3. Change config IPV6 to 'm'
    4. run make modules && make modules_install

    I think that arguing that the kernel image is out of date
    is preposterous in this case. It was built just before the
    config was changed!

    I'm not saying that changing the kernel is an invalid, I'm only
    saying that documentation should be updated to mention explicitly :

    If you are adding a kernel module to your config, you must also
    recompile your kernel and use the new kernel before you use that
    module. Essentially, modules are useful only for hotplugging type
    situations and not for ease of developer access to kernel drivers.

    I agree with Mr. Woodhouse in that this is completely non-intuitive
    and is absolutely not what most linux users think of as expected
    behaviour, but I can understand how something like IPV6 changes too
    many things to be reliably build as a module in this fashion.



    Why can't the subject line of this thread be implemented? If IPV6
    isn't modular, then WHY ALLOW IT AS A MODULE?

    Dana Lacoste
    Ottawa, Canada

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