Re: [Xen-users] Unable to start Windows 8 HVM guest with Xen VGA Passthrough with Xen 4.2.1-pre

["Teo En Ming (Zhang Enming)" <singapore.mr.teo.en.ming@gmail.com>]

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Dear Casey,

I had dom0_mem set to 1024 and 4096 as well, but it did not help. I am 
still getting the errors.

I have 6 GB of memory installed. How much memory should I assign to 
dom0_mem?

Thank you for your prompt reply.

-- 
Yours sincerely,

Mr. Teo En Ming (Zhang Enming)
Singapore


On 30/09/2012 00:22, Casey DeLorme wrote:
> Hello Teo,
>
> That output is identical to the errors I had a few days ago, which was 
> related to available RAM.
>
> Ian helped me debug it, said xl was having a ballooning problem and 
> couldn't free up enough RAM in time to start my HVM.
>
> His suggested solution was to assign a fixed amount of RAM to Dom0 and 
> turn off ballooning.
>
> Prior to this I had been letting Dom0 take all the RAM, but this 
> problem was fixed by adding dom0_mem to grub.cfg and setting a fixed 
> value.
>
> Have you tried re-running the xl create command after the first error? 
> There are commands to move RAM around at run-time as well that you 
> could try.
>
> ~Casey
>
> On Sat, Sep 29, 2012 at 12:09 PM, Teo En Ming (Zhang Enming) 
> <singapore.mr.teo.en.ming@gmail.com 
> <mailto:singapore.mr.teo.en.ming@gmail.com>> wrote:
>
>     On 29/09/2012 21:35, Teo En Ming (Zhang Enming) wrote:
>
>         Hi,
>
>         I have applied Xen VGA passthrough patches from David Techer's
>         personal website to Xen 4.2.1-pre source tree. Everything
>         compiled and
>         installed smoothly. But when I tried to start Windows 8 HVM
>         domU with
>         VGA passthrough, it gave me the following error:
>
>         xc: error: unable to allocate memory to the HVM guest. (16:
>         device or
>         resource busy): Internal error.
>
>         There are no issues with Xen 4.2-unstable changeset 25099 however.
>
>
>     Attached are screenshots of the errors for Xen 4.2.1-pre and Xen
>     configuration files.
>
>     The following are links to screenshots of the errors for Xen
>     4.2.1-pre.
>
>     http://i45.tinypic.com/2j3s7pj.jpg
>
>     http://i45.tinypic.com/95myc3.jpg
>
>
>     -- 
>     Yours sincerely,
>
>     Mr. Teo En Ming (Zhang Enming)
>     Singapore
>
>
>
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>     Xen-users mailing list
>     Xen-users@lists.xen.org <mailto:Xen-users@lists.xen.org>
>     http://lists.xen.org/xen-users
>
>



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