Subject: Re: Xen2 bailout: "Aieee! CPU0 is toast..."
To: Manuel Bouyer <>
From: Johan Ihren <>
List: port-xen
Date: 09/03/2007 23:39:23
Hash: SHA1

>>> Likewise, if this box would run under XEN3 (which I've never tried)
>>> then that would be interesting too, and a strong reason to try XEN3.
>> You'll probably better luck with Xen3, preferably xen-3.1.0.
>> I would be surprised if it didn't support quad-core CPUs.
>>> However, in that case, as I have lot's of stuff that's autogenerated
>>> for my XEN2 domUs, do I need to make any changes to my domUs other
>>> than add a XEN3 kernel?
>> Maybe a few adjustements to the domain config file, but the  
>> filesystem
>> of the domU itself shouldn't need any changes.
> Good! I'll try to break into the box and install the Xen3 bits as  
> it would be interesting to get this machine running (although I  
> don't strictly need it for the present project). I'll let you know  
> if I get it working.

Runs like a charm. Upgrade to xen3 was very straightforward and not  
much trouble.

One question, though...

In Xen2 I've sometimes done the CPU allocation manually becaue the  
Xen2 scheduler has seemed, well, less than perfect for my  
applications. It is then very useful to be able to examine the result  
in the "CPU" column in the output from "xm list". Where do I find  
information about which domU was allocated to which CPU in Xen3? That  
information seems to be missing from both "xm list" and "xm top".



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