Re: [Xen-devel] Re: pvops kernel branches - 2.6.36 options, stable/next/etc?

[Bruce Edge <bruce.edge@xxxxxxxxx>]

On Nov 11, 2010, at 8:25 AM, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> 
wrote:

>>> Well, I am working on a PCI E820 hole thingie,
>> 
>> 
>> If this for the 4GB mem limit on pvops domUs?
> 
> Yup. I got it to boot nicely yesterday too. The patches are in
> devel/e820-hole, _but_ you need patches for the toolstack. Those
> aren't ready yet (they are quite skanky right now).

Fantastic. I'm looking forward to this.
> 
>>> Hmm, so the difference between that and the upstream is the PVonHVM and
>>> the initial domain 0 support (all in Stefano's tree).
>>> 
>> 
>> I tried disabling the  CONFIG_XEN_PVHVM with no change. (see the "2.6.37-rc1
>> mainline domU - BUG: unable to handle kernel paging request" thread.
>> Is that sufficient to eliminate the PnonHVM from the equation?
> 
> Yes should be. And based on your output it doesn't seem to make much 
> difference.
> 
> I think bisecting the code and just running as DomU PV (without PCI 
> passthrough)
> and trying different kernels: 2.6.36, 2.6.35, 2.6.34 and seeing if you get the
> same or similar hang can help us a bit. If you can get hold of Boris you could
> both coordinate this?

Any particular pvops branch, or mainline Linux?

-Bruce
> 
> I've got to fix this AMD bootup hang, but once I am done I can switch over to 
> this,
> unless somebody else picks it up (Jeremy, Stefano, Ian?)

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