Re: SB600 sound module disabled on kexec
From: Loïc Grenié
Date: Wed Oct 07 2009 - 06:11:03 EST
2009/10/7 Takashi Iwai <tiwai@xxxxxxx>:
> At Sun, 4 Oct 2009 15:39:41 +0200,
> Loïc Grenié wrote:
>>
>> Hi,
>>
>> I have had this problem for a long time and not reported
>> it earlier. Sorry. This might have been true already for
>> 2.6.18...
>>
>> I have a laptop with an ATI (AMD) SB600 south bridge
>> including a sound module. When I boot the kernel from the
>> bootloader, there is no problem: hda-intel drives the module.
>> When I kexec the kernel, there is a problem with IRQ
>> configuration and the sound is disabled.
>
> Could you check whether enable_msi=1 option for snd-hda-intel has
> any influence? I enabled this as default for 2.6.33, and I'd like to
> know any good/bad influence by that.
No, it does not: on bootloader-boot snd-hda-intel loads correctly and
sound is enabled, on kexec however sound is disabled with the same
"cannot grab IRQ 0" message.
Thanks,
Loïc
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