[Xen-users] Re: Re: Re: MythTV and Xen

[Bastiaan <Bastiaan@xxxxxxxxxxxxxxx>]

lists wrote:

> Bastiaan wrote:
>> lists wrote:
>>
>>   
>>> Bastiaan wrote:
>>>     
>>>> lists wrote:
>>>>
>>>>   
>>>>       
>>>>> Hello All,
>>>>>
>>>>> Is anyone successfully running MythTV in either a Dom0 or DomU?  I
>>>>> have mythtv running with 4 PCI Hauppauge Nova-T DVB cards in a C2D
>>>>> system
>>>>> with a G33 chipset mobo under OpenSUSE 10.3.  Everything works
>>>>> perfectly under the x86-64 kernel, as soon as I reboot into the Xen
>>>>> kernel I get picture tearing and eventually mythtv will crash, usually
>>>>> with a glibc
>>>>> malloc error.  The best way I can describe the picture tearing is that
>>>>> it's almost like the TV signal has become very weak, there are lots of
>>>>> mpeg artifacts on the screen like squares of static image and blocks
>>>>> of strange coloured pixels.
>>>>>
>>>>> I'm open to suggestions of other distros to try.  Fedora Core 8
>>>>> springs to mind as a possibility since it was only recently released
>>>>> so should have a very up-to-date version of Xen included.
>>>>>
>>>>> Kind regards,
>>>>>
>>>>> Steve.
>>>>>     
>>>>>         
>>>> I got mythtv working in xen, both te backend and frontend run in
>>>> domU's, sharing the dom0 with some other (distcc) domU's.
>>>> I haven't had any trouble with is.
>>>> Distro is gentoo, on amd64.
>>>> If you have any specific questions, you can always mail me off-list (I
>>>> do not check the lists too often)
>>>>
>>>>   
>>>>       
>>> Hi Bas,
>>>
>>> Thanks for replying. It would be useful to keep this discussion on the
>>> list so that other people can benefit if they have a similar problem and
>>> search the list.
>>>     
>>
>>
>>
>> I'll keep all reply's on the list, just send me an email if you need
>> (urgent) info. I do check my inbox several times a day, lists more like
>> once every two weeks...
>>
>>
>>   
>>> Could you let me know what kernel version and xen version you are using.
>>> Also, what hardware are you using for your backend? I am especially
>>> interested in the motherboard, CPU and TV cards that you're using.
>>>     
>>
>> I use the gentoo distribution, and everything is straight from portage.
>> xen-sources and xen are the current ~amd64 (thats gentoo unstable for
>> amd64)
>> kernel = 2.6.20 and xen 3.1.2
>>
>>   
> I'm using kernel 2.6.22 but I'm not sure how I go about finding the xen
> version.

there is no ebuild in portage for 2.6.22 yet, 2.6.20 is the latest available
xennified kernel in gentoo.

> 
>> Motherboard is a gigabyte board, ill have to look up the exact type
>> later, i am not at home right now.
>> CPU's are AMD Athlon(tm) 64 X2 Dual Core Processor 4000+ (3200+ for file
>> backends)
>>
>> Capturecards are all WinTV cards. All anolog input. I am experimenting
>> with a TV over IP provider here in the Netherlands, but nut much luck
>> yet!
>>
>>   
> Do you have to pass any boot arguments such as noacpi, noapic or
> irqpoll? (I'm not sure if I spelt those arguments correctly, I can't
> remember them without my notes.)

I used to add the noapic parameter, but that seems to be fixed now, all i've
got left are framebuffer arguments and evms.

> 
> TV over IP, sounds interesting! :-)

The provider hooks us up on a vpn, where all channels are broadcasted, and
video on demand is unicasted to the settopboxes. Problem is the
authorisation (handshake) between settopbox and server... 

We will work this out, eventually ;)

> 
>>> Ultimately, I would like to be able to pass the DVB cards to the DomU
>>> and run the backend in a DomU. This would make upgrading easier since I
>>> could take a copy of the current myth backend, upgrade it and if
>>> something doesn't work I could simply boot up the original DomU. :-)
>>>
>>>     
>>
>> That was one of the reasons i made this setup.
>>
>>   
>>> Regards,
>>>
>>> Steve.
>>>
>>>     
>>>> regards,
>>>>  Bas
>>>>
>>>>
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>>>>
>>>>
>>>>       
>>
>>
>>
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>>



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