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    Matt Yourst wrote:
    > Hi,
    > I just tried to compile 2.4.1 and I'm getting the error "undefined
    > reference to `__buggy_fxsr_alignment'" when trying to do the final
    > link. It looks like this check was something 2.4.1 added to
    > include/asm-i386/bugs.h to fail the kernel build if part of the thread
    > structure wasn't aligned on a 16-byte boundary (which seems to make
    > sense given FXSR's alignment requirements.) When was this check added?
    > I assumed it was a bug in 2.4.0 that was just recently discovered, but
    > I didn't see anything in the ChangeLog to that effect.
    > The problem is that I don't know how to fix it (at least not reliably
    > and cleanly.) I tried rearranging the fields in the task structure,
    > but the alignment still wasn't right. I did apply a few non-standard
    > patches that expanded the task structure, but the additional fields
    > came well after the task's struct thread (which was causing the
    > alignment problem.) FYI, I'm compiling with pgcc 2.95.2 and linking
    > with binutils/ld 2.10 (I've used both of these successfully for
    > countless kernel compiles before this.)
    > Anyone else had this problem?
    > - Matt Yourst

    What GCC version did you compile with?


    Brian Gerst
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