Re: [PATCH] cx23885/vb2 regression: please test this patch

[Hans Verkuil <hverkuil@xs4all.nl>]

On 01/16/2015 05:48 PM, Luis Alves wrote:
> Hans,
> 
> There is another guy having issues with TBS8820 card (uses cx88 and cx24116)
> 
> His syslog:
> http://paste.ubuntu.com/9284564/
> 
> The stackdump makes me believe that the issue also appeared since
> "[media] cx88: convert to vb2"
> (still to confirm)

He needs to upgrade to a newer media_build version. This is a cx88 bug that's
fixed here:

http://www.spinics.net/lists/linux-media/msg84255.html

Regards,

	Hans

> 
> Regards,
> Luis
> 
> 
> On Fri, Jan 16, 2015 at 4:20 PM, Raimonds Cicans <ray@apollo.lv> wrote:
>> On 16.01.2015 16:54, Hans Verkuil wrote:
>>>
>>> On 01/13/2015 06:55 PM, Raimonds Cicans wrote:
>>>>
>>>> On 13.01.2015 16:01, Hans Verkuil wrote:
>>>>>
>>>>> Can you both test this patch? It should (I hope) solve the problems you
>>>>> both had with the cx23885 driver.
>>>>>
>>> Can you check that the function cx23885_risc_field in
>>> drivers/media/pci/cx23885/cx23885-core.c uses "sg = sg_next(sg);"
>>> instead of "sg++;"?
>>
>> There is no sg++ in whole drivers/media/pci/cx23885/ directory.
>>>
>>> To avoid confusion I would prefer that you test with a 3.18 or higher
>>> kernel
>>> and please state which kernel version you use and whether you used the
>>> media_build system or a specific git repo to build the drivers.
>>
>> kernel: Gentoo Hardened kernel 3.18.1 (hardened part turned off)
>> media_build: pure original media_build
>> media tree: https://github.com/ljalves/linux_media (original linux-media
>> plus some
>> new out of kernel TBS drivers (from this tree I need TBS6285 driver))
>>>
>>> I'm also interested if you can reproduce it using just command-line tools
>>> (and let me know what it is you do).
>>
>> For tests I use only command line tools: w_scan & dvb-fe-tool
>>
>> Tests:
>> 1) w_scan on first front end then after 5-10 seconds w_scan on other
>> 2) w_scan on second front end then after 5-10 seconds w_scan on first
>> 3) "dvb-fe-tool -d DVBS" on first front end then after 5-10 seconds w_scan
>> on second front end then after 5-10 seconds w_scan on first
>> 4) "dvb-fe-tool -d DVBS" on second front end then after 5-10 seconds w_scan
>> on first front end then after 5-10 seconds w_scan on second
>>
>> w_scan run on both front ends simultaneously.
>>
>>
>>> Use only one DVB adapter, not both.
>>
>> Do you mean one card or one front end?
>>
>>
>>
>> Raimonds Cicans
>>
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