Re: [Xen-devel] Xen 4.3 development update

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Fri, 2013-05-10 at 15:30 +0100, Fabio Fantoni wrote:
> Il 10/05/2013 13:24, Anthony PERARD ha scritto:
> > On 10/05/13 12:08, Anthony PERARD wrote:
> >> On Fri, May 10, 2013 at 12:00 PM, George Dunlap
> >> <George.Dunlap@xxxxxxxxxxxxx> wrote:
> >>> On Fri, May 10, 2013 at 11:26 AM, George Dunlap
> >>> <George.Dunlap@xxxxxxxxxxxxx> wrote:
> >>>> * qxl not actually working
> >>>>    > qxl apparently not enabled during compile by default
> >>>>    > Appear to be some other bugs even when it is working:
> >>>>    >   http://lists.xen.org/archives/html/xen-devel/2012-11/msg00713.html
> >>>>    owner: ? (Anthony was going to take a look)
> >>>>    We need to either fix both of these problems or disable qxl for 4.3
> >>> Anthony, you were going to take a look at this; did you make any progress?
> >> Yes, I'm still trying to figure out how to enable qxl in the VM.
> > And now, I can search why QEMU crash when starting Xorg with qxl.
> >
> >
> Hi, thanks for your help.
> I'm trying to have qxl full working on xen since end of 2011.
> Since half of 2012 is at least working as standard vga.

This means with:
        vga = "qxl"

in your configuration file? Are you saying that this configuration
works? If not this then which configuration do you believe works?

> The libxl patch should be correct, also with memory size setting.
> I have tried same parameters of libxl qxl patch without xen and are working.
> Also without kvm was working even if performance was really bad but at 
> least qemu did not crash on start with qxl driver.
> Based on this test the problem seems to be xen related problem, probably 
> about hvmloader.

What is the configuration which fails?

Which libxl patch "should be correct"? libxl has lots of patches!

So are you saying that although the libxl patch "should be correct" it
is in fact not sufficient to make qxl work?

> I have tried a lot of time to found exactly what the problem is without 
> success for now.
> I have very little knowledge about these parts.

Which possible causes have you investigated and ruled out? What possible
causes have you been unable to check one way or the other?

If you ask questions about specific things which you cannot follow then
we may be able to point you in the right direction.

Ian.


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