Re: 2.6.27.6 question: ata_sff_hsm_move: ata15 (why always ata15)?

[Justin Piszcz <jpiszcz@lucidpixels.com>]

On Sun, 16 Nov 2008, Tejun Heo wrote:

> Alan Cox wrote:
>> On Fri, 14 Nov 2008 21:22:58 -0600
>> Robert Hancock <hancockr@shaw.ca> wrote:
>>
>>> Justin Piszcz wrote:
>>>> I am trying to find out what the root cause of this error/problem is:
>>>> https://bugzilla.redhat.com/show_bug.cgi?id=462425
>>> The problem is that people assume that timeouts with DRDY like that bug
>>> refers to must be the same problem when it is often not
>>
>> The first stopping point is to apply the DRQ drain patch I sent to the
>> list some time ago and is hopefully lined up for 2.6.29. After that point
>> you can begin to look at the remaining cases, until then its hardly worth
>> it.
>
> Is it really?  For many SATA controllers, DRQ draining isn't really
> necessary.  PATA might be a completely different story tho.

I have been running with the patch for almost 24 hours and running 
extensive disk tests, so far nothing but sometimes it takes a few days 
or more to repeat, I am continuing to test to see if the problem recurs..

Justin.