Re: sata_promise: Keeps saying SATA link down (SStatus 0 SControl 0)

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On Wed, Jan 16, 2008 at 11:01:20AM +0100, Mikael Pettersson wrote:
> Kurt Roeckx writes:
>  > On Tue, Jan 15, 2008 at 10:28:06AM +0100, Mikael Pettersson wrote:
>  > >  > 00:08.0 RAID bus controller: Promise Technology, Inc. PDC20376 (FastTrak 376) (rev 02)
>  > > ...
>  > >  > 00:08.0 0104: 105a:3376 (rev 02)
>  > > 
>  > > Let me guess, this is a Promise chip included on the mainboard
>  > > as a RAID controller, and not an add-on PCI card?
>  > 
>  > Yes, it's a K8V motherboard which has that onboard.
>  > 
>  > > If it's a mainboard chip, please enter the BIOS and see if it
>  > > can be configured for non-RAID mode. If it can, please reconfigure
>  > > it and boot Linux. Does it still claim to be a 20376 or is it
>  > > now a 20378?
>  > 
>  > I can't find an option to turn that off in the BIOS.  If it did, I'd
>  > probably have turned it off already.  I've also opened the case and it
>  > says PDC20376 on the chip.
> 
> Ok. I haven't yet found any information about the 20376 which
> could explain why the 20376 fails while the 20378 works.
> For now, you can disable hotplugging in the driver by applying
> the patch below. This should at least bring back some stability
> to your system.
> 
> Longer-term I guess I'll have to invent a blacklist mechanism
> to automatically prevent 20376 chips from enabling hotplugging.
> That is, unless someone can show me a system where a 20376
> actually does work with hotplugging, in which case I'd need a
> module parameter (yuck) or some form of dynamic detection of
> this condition.

Hi,

I'm still having this problem with a 2.6.29 kernel.  I want to
avoid always having to patch my kernel, so I would like to see
some solution to this.  What do you think that the best way
forward is?


Kurt

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