Re: [Xen-devel] [Qemu-devel] Qxl problem with xen domU, is xen spice and/or qemu bugs?

[Fabio Fantoni <fabio.fantoni@xxxxxxx>]

Il 27/09/2013 10:51, Gerd Hoffmann ha scritto:
>    Hi,
>
> > > > #2 When using f19 try without X11 first.  You should have a working
> > > >      framebuffer console on qxldrmfb before trying to get X11 going.
> > > I tried on Fedora19 minimal installation and with qxl the text console
> > > is working and lsmod show also qxl.
> Good, so the kernel driver is running fine.
>
> > > Is this your intended?
> Yes.
>
> > > > #3 qxl has a bunch of tracepoints.  Enable them, then compare xen
> > > >      results with kvm/tcg results to see where things start going wrong.
> > > I enabled qxl debug with these qemu paramters:
> > > -global qxl-vga.debug=1 -global qxl-vga.guestdebug=20
> debug=1 doesn't do much, most is in tracepoints these days.  I'm using
> the stderr tracer most of the time (enable it using configure).  Then
> you can turn on qxl_* either in monitor (trace-events command) or via
> -trace events=<file-with-event-names>.
Thanks for reply, I used trace of qxl_* instead of -global debug options 
(is it right or must I maintain also global qxl debug option?).
On attachment the new qemu log of windows 7 test with qxl vga.
The test was made as for below:
> I tried also W7 domU on xen with spice-guest-tools-0.65.exe and qxl: 
> domU starts, loads correctly the DE, vdagent and mouse are both 
> working, but screen refreshing is very lagging (also only open of 
> start menu). 
Can you check the log to see if there are strange things to fix also on 
spice and/or qemu?
Thanks for any reply.

> > > I tried to test Fedora19 on debian sid kvm host same qemu version
> > > (1.6) on both sides but with qxl fails to start the DE, also in
> > > fallback mode. Probably there are also regression on qemu and/or spice
> > > about qxl.
> I'm not aware of any regressions.
> I'd suggest to try latest spice-server release.
I double checked and is already to latest version:
http://packages.debian.org/sid/libspice-server1

> HTH,
>    Gerd

Attachment: qemu-dm-W7.7z
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