linux-kernel - Re: 2.6.{30,31} x86_64 ahci problem

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Message-ID: <4AD2FFC7.5010402@kernel.org>
Date:	Mon, 12 Oct 2009 19:07:03 +0900
From:	Tejun Heo <tj@...nel.org>
To:	Alexander Huemer <alexander.huemer@....ac.at>
CC:	Frans Pop <elendil@...net.nl>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, Jeff Garzik <jgarzik@...ox.com>
Subject: Re: 2.6.{30,31} x86_64 ahci problem - irq 23: nobody cared

Alexander Huemer wrote:
> Tejun Heo wrote:
>> Frans Pop wrote:
>>  
>>> On Monday 12 October 2009, Tejun Heo wrote:
>>>    
>>>> Alexander, can you please attach full boot log and the output of
>>>> "lspci -nn"?  Also, how reproducible is the problem?  You already
>>>> answered to Frans' question but can you be more specific?
>>>>       
>>> Full dmesg was made available earlier at:
>>> http://xx.vu/~ahuemer/dmesg_ahuemer_20090923
>>>     
>>
>> Does blacklisting i801_smbus make any difference?
>>
>>   
> lspci -nn:
> http://xx.vu/~ahuemer/lspci_nn_ahuemer_20091012
> 
> what do you mean with "blacklisting i801_smbus" ?

[    3.872387] i2c /dev entries driver
[    3.873943] i801_smbus 0000:00:1f.3: PCI INT B -> GSI 23 (level, low) -> IRQ 23
[    3.875580] w83627hf: Found W83627HF chip at 0x290

IRQ23 is also used by i801_smbus and it would be nice to confirm
whether the problem can still be triggered with that driver not
loaded.  Adding "blacklist i2c_i801" to /etc/modprobe.d/blacklist
should probabaly do the trick.

Thanks.

-- 
tejun
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