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    SubjectMath-emu kills the kernel on Athlon64 X2

    If I enable the math emulator in 2.6.18-rc7-git2 (only version I've
    tried this with) and then boot the kernel with "no387" then I only get
    as far as lilo's "...Booting the kernel." message and then the system

    The kernel is a 32bit kernel build for K8 and my CPU is a Athlon64 X2 4400+

    If I boot the same kernel without the "no387" option, then it boots
    and runs just fine, so it seems the math emulator code is lethal on
    newer CPU's :-(

    Now, I need some help debugging this. The crash happens very early and
    doesn't result in anything printed to the screen (I guess it's too
    early to call printk()) - How on earth can I get a lead on what's
    going wrong? Any help would be appreciated.

    Jesper Juhl <>
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      Last update: 2006-09-19 00:21    [W:0.032 / U:4.080 seconds]
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