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Date: Thu, 19 Sep 2013 11:04:22 +0100
From: George Dunlap <george.dunlap@eu.citrix.com>
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Subject: Re: [Qemu-devel] [Xen-devel] [PATCH] libxl: Remove qxl support for
	the 4.3 release
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To: Jan Beulich <JBeulich@suse.com>
Cc: Keir Fraser <keir.xen@gmail.com>, Andrew Cooper <andrew.cooper3@citrix.com>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>, Fabio Fantoni <fabio.fantoni@m2r.biz>, Anthony PERARD <anthony.perard@citrix.com>, xen-devel <xen-devel@lists.xenproject.org>

On 19/09/13 11:01, Jan Beulich wrote:
>>>> On 19.09.13 at 11:22, Fabio Fantoni <fabio.fantoni@m2r.biz> wrote:
>> This is logs from xl dmesg about Quantal (ubuntu 12.10) hvm domU with
>> qxl vga and patch "x86-HVM-emul-split-large":
>>
>>> (d3) HVM Loader
>>> [...]
> So in particular no wrong mmio size messages.
>
>> qemu seem to crash at domU's xorg loading, nothing on logs about the
>> crash, only the last line added on xl dmesg above and on qemu log:
>> qemu: terminating on signal 1 from pid 8485
>>
>> I found strange things on xl dmesg logs above about domU (I put it in
>> bold and starred).
> I can't say anything about those. Once again, with qemu issues
> (and tools ones in general) i have to defer to the respective
> experts.

Fabio,

I think back when Anthony Perard looked at this, he found that there was 
a field not being initialized in qemu that caused it to crash when using 
qxl.  I think the fix was just a one-line patch -- do you have that 
patch applied to your copy of qemu?

  -George