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    SubjectRe: [PATCH] Fix kallsyms/insmod/rmmod race

    Rusty Russell <> wrote:

    > The more I looked at this, the more I warmed to it. I've known for a
    > while that people are using kallsyms not for OOPS (eg. /proc/$$/wchan),
    > so we should provide a "grabs locks" version, but this solution gets
    > around that nicely, while making life more certain for the oops case,
    > too.

    Hmmm... though it works on i386 SMP, it doesn't, however, seem to work on
    ppc64 SMP:-/

    My pSeries box seems to think that it can't find any symbols from previously
    loaded modules, and my Power5 box is quite happy to load modules that depend
    on other modules but panics because it can't mount its root fs.

    This is very odd, because the patch is simple enough. Is there anything
    obvious I've missed that you can see? Or maybe I'm just misunderstanding how
    stop_machine_run() works... maybe it can't be called during initialisation.

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      Last update: 2005-03-22 14:09    [W:0.019 / U:2.968 seconds]
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