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    Subject[PATCH] x86: correctly set UTS_MACHINE for "make ARCH=x86"
    Upon request I have updated the patch description
    and hope it is now more explanatory.

    IMHO this should go into 2.6.24.
    BTW, the patch was tested with v2.6.24-rc3-19-g2ffbb83.



    x86: correctly set UTS_MACHINE for "make ARCH=x86"

    For a kernel built with "make ARCH=x86" the following system
    information is displayed when running the new kernel

    $ uname -m

    On some i386 systems (e.g. K7) we even have the following information

    $ uname -m

    This is weird. The usual information for "uname -m" should be "x86_64"
    on 64-bit and "i386" or "i686" on 32-bit.

    This patch fixes the issue by setting UTS_MACHINE to "i386" for 32-bit
    kernel builds and to "x86_64" for 64-bit kernel builds. I.e., "x86"
    won't be used for UTS_MACHINE anymore.

    Cc: Thomas Gleixner <>
    Cc: Ingo Molnar <>
    Cc: "H. Peter Anvin" <>
    Acked-by: Sam Ravnborg <>
    Signed-off-by: Andreas Herrmann <>

    arch/x86/Makefile | 5 ++---
    1 files changed, 2 insertions(+), 3 deletions(-)

    diff --git a/arch/x86/Makefile b/arch/x86/Makefile
    index 116b03a..7aa1dc6 100644
    --- a/arch/x86/Makefile
    +++ b/arch/x86/Makefile
    @@ -11,10 +11,9 @@ endif
    $(srctree)/arch/x86/Makefile%: ;

    ifeq ($(CONFIG_X86_32),y)
    + UTS_MACHINE := i386
    include $(srctree)/arch/x86/Makefile_32
    + UTS_MACHINE := x86_64
    include $(srctree)/arch/x86/Makefile_64

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