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    SubjectRe: [PATCH 1/1] x86: fix text_poke


    On Mon, 28 Apr 2008, Jiri Slaby wrote:
    >
    > Thanks. Bisected mm down to git-x86.patch, bisected git-x86-latest down to
    > x86: enhance DEBUG_RODATA support - alternatives
    > The patch below fixes the problem for me. Comments welcome.

    You're a hero, Jiri.

    And that also explains why I didn't see it - I don't do modules.

    Thanks a heap.

    > The 0xf0 pattern comes from alternatives_smp_lock:
    > text_poke(*ptr, ((unsigned char []){0xf0}), 1);

    And we should really add a lot more sanity checking there.

    Linus


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