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    SubjectRe: [PATCH] x86_64: make amd quad core 8 socket system not be clustered_box v2
    On Sunday 24 February 2008 04:29:03 am Andi Kleen wrote:
    > On Sat, Feb 23, 2008 at 09:48:42PM -0800, Yinghai Lu wrote:
    > >
    > > quad core 8 socket system will have apic id lifting.the apic id range could
    > > be [4, 0x23]. and apic_is_clustered_box will think that need to three clusters
    > > and that is large than 2. So it is treated as clustered_box.
    >
    > Ok I see you chose the quick hack over doing it properly ...
    >
    > >
    > > and will get
    > >
    > > Marking TSC unstable due to TSCs unsynchronized
    > >
    > > even the CPUs have X86_FEATURE_CONSTANT_TSC set.
    >
    > I doubt that will do the right thing on AMD based vSMP,
    > which also required the cluster check on AMD iirc.
    >
    > Cc'ed Kiran/Shai. damage has already hit x86 tree I believe.

    do you have bootlog for these box?

    IBM summit2, Unisys es70000, and system from scalemp..

    DMI could tell the difference?

    YH


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