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[Xen-bugs] [Bug 1386] New: can't acquire more than 8 CPUs in a VM

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Subject: [Xen-bugs] [Bug 1386] New: can't acquire more than 8 CPUs in a VM
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Date: Wed, 12 Nov 2008 08:56:44 -0800
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           Summary: can't acquire more than 8 CPUs in a VM
           Product: Xen
           Version: unspecified
          Platform: x86-64
        OS/Version: Linux-2.6
            Status: NEW
          Severity: major
          Priority: P1
         Component: Hardware Support
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: patti.sheaffer@xxxxxxxx

I specify 16CPUs in the Machine Details dialog box and boot the VM, but the
Guest OS only captures 8 (or less if I set less) CPUs.  The guest OS is Windows
2003 Server Enterprise Edition which I have verified will support at least
16CPUs when booted as the host OS on my current system or my TYAN S4881/B4881
16CPU system.

My current system is OpenSuSE11.0 x86_64 on a TYAN S4985/B4985 system which has
8 each quad-core Opteron 8000 processors and 64BG memory.  The version of Xen
listed in YaST is 3.2.1_16881

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