Re: dvb lock patch

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2012/4/20 Torfinn Ingolfsen <tingox@xxxxxxxxx>:
> 2012/4/18 Josu Lazkano <josu.lazkano@xxxxxxxxx>:
>> El día 18 de abril de 2012 21:19, Mauro Carvalho Chehab
>> <mchehab@xxxxxxxxxx> escribió:
>>> Em 18-04-2012 15:58, Ezequiel García escreveu:
>>>> Josu,
>>>>
>>>> On Tue, Apr 17, 2012 at 10:30 AM, Josu Lazkano <josu.lazkano@xxxxxxxxx> wrote:
>>>>> 2012/3/24 Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>:
>>>> [snip]
>>>>>>
>>>>>> That doesn't sound right to me, and can actually cause race issues.
>>>>>>
>>>>>> Regards,
>>>>>> Mauro.
>>>>>
>>>>> Thanks for the patch Mauro.
>>>>>
>>>>
>>>> I think Mauro is *not* giving you a patch, rather the opposite:
>>>> pointing out that the patch can
>>>> cause problems!
>>>
>>> Yes. The driver will be unreliable with a patch like that, due to
>>> race conditions.
>>>
>>>> Regards,
>>>> Ezequiel.
>>>
>>> Regards,
>>> Mauro.
>>
>> Thanks anyway.
>>
>> I am looking for a solution to use virtual adapters on MythTV to use
>> my satellite provider card on two machines.
>> With 2.6.32 kernel is working great, but there is no way to work with
>> 3.x kernel.
>>
>> Is anyone using sasc-ng with latest kernel?
>>
>
> Would kernel 3.0.0.15 do?
> If so, descriptions on how I did it here:
> http://sites.google.com/site/tingox/digitaltv_sascng
> http://sites.google.com/site/tingox/asrock_e350m1_xubuntu
>
> Note: these are my work notes, not a how-to!
>
> As you can see, I'm using this patch:
> http://kipdola.be/subdomain/linux-2.6.38-dvb-mutex.patch
>
> It seems to work for me (had it running with Kaffeine on encrypted
> channesl for two weeks in a row)
>
> HTH
> --
> Regards,
> Torfinn Ingolfsen
> --
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Thanks Torfinn!

I get it working with modules compilation, that great!

apt-get install linux-source-3.2
cd /usr/src/
tar -xjvf linux-source-3.2.tar.bz2
cd linux-source-3.2/
wget http://kipdola.be/subdomain/linux-2.6.38-dvb-mutex.patch
patch -p1 linux-2.6.38-dvb-mutex.patch (I must do it manually, maybe
for the kernel version)
cp /boot/config-3.2.0-2-686-pae .config
cp ../linux-headers-3.2.0-2-686-pae/Module.symvers .
make oldconfig
make prepare
make scripts
make modules SUBDIRS=drivers/media/dvb/
cp drivers/media/dvb/dvb-core/dvb-core.ko
/lib/modules/3.2.0-2-686-pae/kernel/drivers/media/dvb/dvb-core/
(reboot)

I am not software developer and I have no idea what means "race
conditions", is this sasc-ng or linux driver "problem"?

It will be great to fix it and not patch the driver anymore, but I am
happy with this solution (module compilation).

Thanks and best regards.

-- 
Josu Lazkano
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