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On Mon, Feb 25, 2008 at 11:08 AM, Ravikiran Thirumalai <kiran@scalemp.com> wrote: > On Sun, Feb 24, 2008 at 01:29:03PM +0100, 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.> >>> Andi, Yes. AMD based vSMPowered systems uses clustered APICs, and this > check base on cpu vendor id is not good :(. please check if you happy with http://lkml.org/lkml/2008/2/24/273 Thanks Yinghai Lu | ||||||||||
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