Re: [Xen-devel] CPU enumeration in Xen

[Dominik Klein <dk@xxxxxxxxxxxxxxxx>]

Keir Fraser schrieb:
> It seems a bit unlikely, since the enumeration code is from Linux. Perhaps
> the enumeration order has changed in Linux?
Here's what I see without Xen:

# uname -r
2.6.18.2-34-default
# grep -E "processor|physical" /proc/cpuinfo
processor       : 0
physical id     : 0
processor       : 1
physical id     : 0
processor       : 2
physical id     : 3
processor       : 3
physical id     : 3

> > http://lists.xensource.com/archives/html/xen-users/2007-08/msg00507.html
This was tested on the exact machine the output above is from. The 
described tests were made with 2.6.18 and xen 3.1.0 compiled from 
source. No redhat patches or something like that.
From what I saw and described, it looks pretty clear that the 
numeration in Xen is different, but I cannot see the physical ID in 
/proc/cpuinfo to confirm that.
Maybe there is another way to see that?

Regards
Dominik

ps. i'll be on holiday for 3 days from now but i'll be happy to supply 
more information when i am back
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