Re: Annoying whitenoise sound coming from snd_hda enabled chipset

Yoshihiro Ota wrote:
> On Thu, 26 Feb 2009 22:05:29 +0200
> Alexander Motin <mav_at_FreeBSD.org> wrote:
> 
>> Yoshihiro Ota wrote:
>>> On Tue, 24 Feb 2009 21:57:27 +0200
>>> Alexander Motin <mav_at_FreeBSD.org> wrote:
>>>> Yoshihiro Ota wrote:
>>>>> In my case, with hdac or pcm device, 8-CURRENT fails to boot very requentry.
>>>>> It fails to prove a device and doesn't proceed farthar than that point.
>>>>> Now it only boots once in 5 or 10 reboots.
>>>>>
>>>>> When it boots, it prints lots of following messages.
>>>>>
>>>>> hdac0: HDA Codec #0: Conexant CX20549 (Venice)
>>>>> hdac0: unable to allocate widgets!
>>>>> hdac0: unable to allocate widgets!
>>>>> hdac0: unable to allocate widgets!
>>>>> hdac0: unable to allocate widgets!
>>>>> hdac0: unable to allocate widgets!
>>>>> hdac0: hdac_command_send_internal: TIMEOUT numcmd=1, sent=1, received=0
>>>>> hdac0: hdac_command_send_internal: TIMEOUT numcmd=1, sent=1, received=0
>>>>> hdac0: hdac_command_send_internal: TIMEOUT numcmd=1, sent=1, received=0
>>>>> hdac0: hdac_command_send_internal: TIMEOUT numcmd=1, sent=1, received=0
>>>>> hdac0: hdac_command_send_internal: TIMEOUT numcmd=1, sent=1, received=0
>>>>>
>>>>> I think this started happening about a week ago or so, sometime between
>>>>> 13 and 16th.
>>>> The only significant change last time was enabling MSI by default. But I 
>>>> don't think it should lead to such errors. I have tried even operation 
>>>> completely without interrupts working and there is not such errors. Can 
>>>> you send me complete verbose dmesg with the problem and `pciconf -lvc` 
>>>> output?
>>>>
>>>> Also you may try to disable MSI by setting 'hint.hdac.0.msi=0' hint.
>>> Once I disabled snd_hda_load="YES" in /boot/loader.conf, it comes up
>>> all times.  However, when I run "kldload snd_hda", the system stops responding,
>>> i.e. crashes.
>>>
>>> So, now I added 'hint.hdac.0.msi="0"' in the hint; then, system comes up fine.
>>> I tried "kldload snd_hda" and got the following output.
>>> System didn't crash after adding the hint so that I added snd_hda_load="YES"
>>> back to /boot/loader.conf.
>> I have committed a patch to the CURRENT that should disable MSI for your 
>> HDA controller by default. Test it please.
> 
> That's r189086, isn't it?
> 
> So, for testing, I will remove hint.hdac.0.msi and add 'snd_hda_load="YES"' back.
> Does that sound valid test?

Yes. 'snd_hda_load="YES"' is on your wish.

-- 
Alexander Motin