Connie Sieh wrote:
> On Fri, 27 Jan 2006, Debbie Mazurek wrote:
> 
> 
>>Hi,
>>
>>I have a Dell Poweredge 6800, with 4 Intel 64 bit 7020-chipset dual-core
>>CPU's. They also support hyperthreading.
>>
>>I can't get the 2.6.9-22.0.2 SMP x86 kernel to boot.  The UP kernel
>>boots fine.  
>>
>>The x86_64 SMP kernel boots fine, but apparently only supports 8 cpu's -
>>unfortunately hyperthreading *has to* work, for a research project.
> 
> 
> The x86_64 kernel only supports 8 cpu's.  The Upstream Vendor has implied 
> that Update 3 will enable 32 cpu's.
> 
If you can't wait that long, and really don't need the 64 bit part, the 
i386 kernel does support 32 cpu's right now.

Since our kernel is the same as RedHat's, we can use their 'hardware 
limitation' chart as found here

http://www.redhat.com/en_us/USA/rhel/details/limits/

The line you are looking for is under
   Technology Limits (certified)
     Maximum Logical CPU's
      AMD64/EM64T



>>I was under the impression that the x86 kernel *should* work on a 64-bit
>>machine.  Is this not the case?   Any info or experiences would be
>>appreciated.
>>
> 
> 
> It does work on a 8 cpu 64 bit machine.
> 
> 
>>cheers,
>>deb
>>
> 
> 
> -Connie Sieh


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