Try report: Sony VAIO Type P
Yoshifumi SASAKI
sasaki at ongs.co.jp
Tue Mar 10 20:26:52 PDT 2009
Alexander Motin wrote:
> Alexander Motin wrote:
>> Yoshifumi SASAKI wrote:
>>> Sound... succeed to load snd_hda.ko
>>>
>>> hdac0: <Intel SCH High Definition Audio Controller> mem
>>> 0x942c0000-0x942c3fff irq 11 at device 27.0 on pci0
>>> hdac0: HDA Driver Revision: 20090215_0128
>>> hdac0: [ITHREAD]
>>> hdac0: HDA Codec #0: Realtek ALC262
>>> pcm0: <HDA Realtek ALC262 PCM #0 Analog> at cad 0 nid 1 on hdac0
>>>
>>> I receive many messages.And I try to play MP3 data,But not sound.
>>>
>>> interrupt storm detected on "irq5:"; throttling interrupt source
>>> interrupt storm detected on "irq5:"; throttling interrupt source
>>> interrupt storm detected on "irq5:"; throttling interrupt source
>>> interrupt storm detected on "irq5:"; throttling interrupt source
>>
>> snd_hda supports several interrupt modes: MSI, usual interrupts and
>> polling (interruptless operation). The version you have tested uses
>> MSI by default. You can switch it to use usual interrupts by setting
>> hint.hdac.0.msi=0 in loader.conf, or to use polling by
>> dev.hdac.0.polling=1 sysctl. Also you can try latest CURRENT, as
>> there were some MSI related changes recently.
>
> According to Intel's official SCH chip errata: "High Definition Audio
> Does Not Send Interrupts to the CPU When Using the MSI". So may be
> disabling it is the right way out.
>
First, I set hint.hdac.0.msi=0 in loader.conf. interrupt storm message
does not stop and not work.
Next, I unset hint.hdac.0.msi=0 and setting dev.hdac.0.polling=1 by
sysctl command.
interrupt storm message stop and sound music:)
Thanks!
--
Yoshifumi SASAKI, ONGS Inc.
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