Re: Help interpreting AHCI failure messages

[Tejun Heo]

Hello,

Andrew Lyon wrote:
>>>>> Furthermore, ata2 - which is sharing the same interrupt - seems to have
>>>>> managed to read the DVD drive's information, so something must be
>>>>> working.  But why is it failing for the disk?
>>>> Can you try irqpoll on it?
>>> Here's a log of a run where everything works initially, but then it
>>> starts to fail (about half way into the log).  ATA_DEBUG is enabled, so
>>> its pretty verbose.
>>>
>>> http://kraxel.fedorapeople.org/for-jeremy/xeni.log
>>>
>>> Does anything stand out?
>> Can you please exclude pata_acpi from the initrd and see whether
>> anything changes?
> 
> I have already tried using a kernel with pata_acpi disabled, it does not help.

There's a BUG messages in the log and several IRQ enable/disable
messages && once timeout happens on one of the ata port, the other one
begins to time out too.  I'm out of ideas and think this really needs
a look from someone who knows xen.  It doesn't seem to be a libata
problem at this point.

Thanks.

-- 
tejun
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