Re: Issue with creative Xfi PCIe ca0110-IBG

["Guillem Solà" <garanda@flumotion.com>]

Takashi Iwai wrote:
> At Fri, 09 Oct 2009 16:15:00 +0200,
> Guillem Solà wrote:
>   
>> Takashi Iwai wrote:
>>     
>>> At Fri, 09 Oct 2009 11:19:04 +0200,
>>> Guillem Solà wrote:
>>>   
>>>       
>>>> Hi,
>>>>
>>>> I have a Creative XFi PCIe with ca0110-IBG chip. It's primary use is 
>>>> audio input for streaming on a brand new Dell server with RHEL. I have 
>>>> been testing latest kernel 2.6.31 through it's releases candidates and 
>>>> the card stoped working on 2.6.31-rc6, so now I'm stuck at 2.6.31-rc5. 
>>>> With rc5 I made a 2 weeks test and it went flawlessly.
>>>>
>>>> There's another guy who referenced this issue on 
>>>> http://mailman.alsa-project.org/pipermail/alsa-devel/2009-September/020876.html 
>>>> and Takashi Iwai said that there is a communication error between the 
>>>> codec and the controller.
>>>>
>>>> Any workaround? Is there a bug created related to this issue?
>>>>
>>>> I tried to "extract" the alsa-driver on 2.6.31-rc5 and install it 2.6.31 
>>>> final without success. Also tried to get old snapshots from alsa-driver 
>>>> and alsa-kmirror but I cannot compile them. Any place where get some 
>>>> info about how to create
>>>>     
>>>>         
>>> Then some codes added after rc5 regressed?
>>> The candidates are not so many but a few:
>>>
>>> deadff1665491afce124a8ff83f00f784161f660
>>>     ALSA: hda: track CIRB/CORB command/response states for each codec
>>>
>>> a678cdee25a387c8fc3b2754974695412baf1d85
>>>     ALSA: hda: take cmd_mutex in probe_codec()
>>>
>>> cdb1fbf23181c133fb24f12ad14ccea7dc399599
>>>     ALSA: hda: take reg_lock in azx_init_cmd_io/azx_free_cmd_io
>>>
>>> c32649feb4573b31f0a2bfdf35cbe1351256c764
>>>     ALSA: hda: read CORBWP inside reg_lock
>>>
>>> feb273404f15d86098cb0e81e46330d5c1e22b1b
>>>     ALSA: hda: remember last command for each codec
>>>
>>> The suspicious changes are the first one and the third one.
>>> But, anyway, it'd be helpful if you can bisect these.
>>>
>>> If you can use git, git-bisect would be the best to try.
>>> Do bisect only for changes in sound/pci/hda directory between
>>> 2.6.31-rc5 and rc6.
>>>
>>>
>>> thanks,
>>>
>>> Takashi
>>>
>>>   
>>>       
>> Ok I read how to do bisect with git and so on. Also take latest alsa 
>> from git.
>>
>> Now the question is do I have to do bisect from alsa-kernel? (that's 
>> what I'm trying now) but that implies recompile kernel in every step, 
>> isn't it?
>>     
>
> If you can build the kernel by yourself, and you already find that
> 2.6.31-rc5 works as is, I recommend you to bisect the kernel tree.
>
> As mentioned, the commits to bisect are only for sound/pci/hda
> directory, and there aren't so many.  You can just rebuild the module
> with "make M=sound/pci/hda" during bisecting.
>
>
> Takashi
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>   
Thanks for all,

This is a log about how is it going. I think I'm doing things right.

I have to reboot every time because I cannot get the soundcard work again.

I started from 2.6.31-rc6, compiled and installed it and then reboot to 
my 2.6.31-rc6 from git.


# git bisect start -- sound/pci/hda/
# git bisect good v2.6.31-rc5
# git bisect bad
Bisecting: 6 revisions left to test after this
[feb273404f15d86098cb0e81e46330d5c1e22b1b] ALSA: hda: remember last 
command for each codec
-- HAVE TO REBOOT --
# make M=sound/pci/hda
# make modules_install M=sound/pci/hda

# /etc/init.d/alsasound stop
# rmmod snd_hda_codec_ca0110
# rmmod snd_hda_codec
# /etc/init.d/alsasound start

- HAVE TO REBOOT CANNOT GET CARD WORKING AGAIN--

# git bisect log
git bisect start 'sound/pci/hda/'
# good: [ed680c4ad478d0fee9740f7d029087f181346564] Linux 2.6.31-rc5
git bisect good ed680c4ad478d0fee9740f7d029087f181346564
# bad: [64f1607ffbbc772685733ea63e6f7f4183df1b16] Linux 2.6.31-rc6
git bisect bad 64f1607ffbbc772685733ea63e6f7f4183df1b16

# git bisect bad
Bisecting: 2 revisions left to test after this
[a678cdee25a387c8fc3b2754974695412baf1d85] ALSA: hda: take cmd_mutex in 
probe_codec()

# /etc/init.d/alsasound stop
# make modules_install M=sound/pci/hda
# /etc/init.d/alsasound start
# /etc/init.d/alsasound stop
# modprobe snd-hda-codec-ca0110
# /etc/init.d/alsasound start

- HAVE TO REBOOT CANNOT GET CARD WORKING AGAIN--
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