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    SubjectRe: [PATCH] [20/45] x86_64: Use 8 byte stack alignment when possible
    On Fri, Sep 21, 2007 at 10:45:02PM +0200, Andi Kleen wrote:
    >
    > Kernel doesn't use SSE2, so it doesn't need 16 byte alignment. Also
    > the stack can be already unaligned so letting the compiler align
    > is useless. This may make some stack frames smaller.
    > Only works with very recent gcc 4.3

    My gcc 4.1.2 from Fedora 7 (with who knows what backported)
    references this in its manpage. How was it broken before 4.3 ?
    (I'm curious if I'll suddenly see not expected behaviour with
    this change with that compiler).

    Dave

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