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    SubjectRe: 2.5.14-dj1: misc.o: undefined reference to `__io_virt_debug'
    On Tue, 7 May 2002, Dave Jones wrote:

    > On Tue, May 07, 2002 at 08:36:09PM +0200, Adrian Bunk wrote:
    >
    > > misc.o: In function `puts':
    > > misc.o(.text+0x1c46): undefined reference to `__io_virt_debug'
    > > misc.o(.text+0x1c7c): undefined reference to `__io_virt_debug'
    > > misc.o(.text+0x1ca9): undefined reference to `__io_virt_debug'
    > > misc.o(.text+0x1cde): undefined reference to `__io_virt_debug'
    >
    > Odd. Repeatable after a make distclean ?

    Yes, it's repeatable with a clean kernel source.

    > I always build my test kernels with CONFIG_DEBUG_IOVIRT=y, and I
    > haven't seen this happen.

    But you build without CONFIG_MULTIQUAD?

    Compiling misc.c with -O0 gives a better error message:

    <-- snip -->

    ...
    ld -m elf_i386 -Ttext 0x100000 -e startup_32 -o bvmlinux head.o misc.o
    piggy.o
    misc.o: In function `outb_quad':
    misc.o(.text+0x289c): undefined reference to `__io_virt_debug'
    make[2]: *** [bvmlinux] Error 1
    make[2]: Leaving directory
    `/home/bunk/linux/kernel-2.5/linux-2.5.14-modular/arch/i386/boot/compressed'

    <-- snip -->

    cu
    Adrian

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