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    SubjectRe: [Xen-devel] Re: [PATCH 00 of 36] x86/paravirt: groundwork for 64-bit Xen support

    * Jeremy Fitzhardinge <jeremy@goop.org> wrote:

    >> config and full log can be found at:
    >>
    >> http://redhat.com/~mingo/misc/config-Mon_Jun_30_11_11_51_CEST_2008.bad
    >>
    >
    > That config doesn't build for me. When I put it in place and do "make
    > oldconfig" it still asks for lots of config options (which I just set
    > to default). But when I build it fails with:

    try 'make ARCH=i386 oldconfig' - does it work better that way?

    > include2/asm/page_64.h:46:2: error: #error "CONFIG_PHYSICAL_START must be a multiple of 2MB"
    > make[3]: *** [arch/x86/kernel/asm-offsets.s] Error 1
    >
    > I can fix that, of course, but it doesn't give me confidence I'm
    > testing what you are...

    the problem there is that the 32-bit config has:

    CONFIG_PHYSICAL_START=0x100000

    which the 64-bit make oldconfig picked up, but that start address is not
    valid on 64-bit.

    Ingo


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