RE: [Xen-ia64-devel][Patch]Add two PAL callswhichfixSMPwindowsinstallation crashing bug

[Alex Williamson <alex.williamson@xxxxxx>]

Hi Anthony,

On Tue, 2007-04-03 at 09:22 +0800, Xu, Anthony wrote:
> Alex Williamson write on 2007å4æ3æ 5:52:
> > On Mon, 2007-04-02 at 15:08 -0600, Alex Williamson wrote:
> >> This suggests to me that maybe it's not the
> >> dual-core vs single-core that's really causing problems, but
> >> something windows does with "extra" CPUs that we aren't emulating. 
> >> Thanks, 
> 
> One question, can windows be installed on  SC Montecito with more than two 
> processors?

   I don't know.  The engineers I talked to didn't know of any problems
with Windows on single-core Montecitos, so I assume it works.

>  
> >    After further consideration, you observed the "extra" CPUs idling
> > in SAL. 
> 
> Sorry, I described this incorretly, the "extra" CPUs are deaplooping at the 
> very
> beginning of windows boot.

   Ok, so no return to SAL then.

> 
>       I don't think this issue is related with vCPU hotplug.
> We can install windows on Montecito with 4 Logical processors, and these
> 4 logical processors are running inside windows, means they are up.
> And after applying this patch, we can install windows on XEN/VTI domain with 
> 4 vcpu
> Running.

   What happens with more than 8 vCPUs on an "Enterprise Edition"
license?  It seems more than coincidental that they fail so similarly.
Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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