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    SubjectRe: Bug#464962: immediate crash on boot on TM5800
    maximilian attems wrote:
    > On Tue, Feb 12, 2008 at 01:14:04PM -0800, H. Peter Anvin wrote:
    >> Are you sure that build matches the bug report?
    >
    > urrgs right sorry, the posted vmlinux is a newer
    > 2.6.24-git22 and not Version: 2.6.24-3
    >
    >> The EIP given falls inside the .data segment of that kernel,
    >> specifically inside the symbol init_task.
    >>
    >> -hpa
    >
    > will rebuild aboves.

    Okay, the faulting instruction is the following:

    c0383360: 0f 1f 40 00 nopl 0x0(%eax)

    The Crusoe code morphing software apparently doesn't recognize these
    "long noops", and (presumably) the rest of the hinting NOOP group. gcc
    didn't use to generate them, and Crusoe/Efficeon generally do not
    benefit from code alignment anyway. I suspect the best thing to do is
    to use either a 586 kernel or build a dedicated Crusoe kernel without
    code alignment.

    -hpa



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