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    SubjectRe: [Bug 11388] New: 2.6.27-rc3 warns about MTRR range; only 3 of 16gb of memory is usable
    On Thu, Aug 21, 2008 at 8:51 PM, Ingo Molnar <mingo@elte.hu> wrote:
    >
    > * Yinghai Lu <yhlu.kernel@gmail.com> wrote:
    >
    >> On Thu, Aug 21, 2008 at 4:56 AM, Ingo Molnar <mingo@elte.hu> wrote:
    >> >
    >> > * Ingo Molnar <mingo@elte.hu> wrote:
    >> >
    >> >>
    >> >> * Yinghai Lu <yhlu.kernel@gmail.com> wrote:
    >> >>
    >> >> > [PATCH] x86_64: printout msr
    >> >>
    >> >> looks rather useful - added it to tip/x86/debug.
    >> >
    >> > fails to build with the attached config:
    >> >
    >> > arch/x86/kernel/cpu/common_64.c: In function 'print_cpu_msr':
    >> > arch/x86/kernel/cpu/common_64.c:456: error: implicit declaration of function 'rdmsrl_amd_safe'
    >> > arch/x86/kernel/cpu/common_64.c: In function 'print_cpu_info':
    >> > arch/x86/kernel/cpu/common_64.c:486: error: 'struct cpuinfo_x86' has no member named 'cpu_index'
    >> >
    >> > i realize that this wasnt sent for inclusion, but i think it would make
    >> > sense to tidy it up and integrate it.
    >>
    >> that was one tool to verify if BIOS does right thing about some special bits.
    >>
    >> it seems it doesn't compile when xen etc is enable in config.
    >
    > yeah - but would be nice to fix it, as it's a useful diagnostic patch.
    > If people have similar problems in the future they can boot their distro
    > kernels with show_mtrr=x to get a MTRR dump.
    >

    will look at it.

    YH


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