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    SubjectRe: 2.6.32-rc3: floating-point build failure (undefined reference to `__udivdi3' in menu governor)
    Andreas Mohr wrote:
    > Hi,
    >> looking at it, can you try sticking (u32) at the end of line 212; that multiply is not very likely to exceed 32 bits
    >
    > Nopeee.
    >
    > data->predicted_us = DIV_ROUND_CLOSEST((u32)
    > data->expected_us * data->correction_factor[data->bucket],
    > (u32)RESOLUTION * DECAY);
    >
    > It did properly rebuild drivers/cpuidle/governors/menu.o.
    > Still happening.
    > IOW it must be somewhere inside the DIV_ROUND_CLOSEST macro or so.

    it looks like your GCC has a problem dividing by a power of two though;
    both DECAY and RESOLUTION are powers of two...



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