Date: Thu, 10 Aug 2006 15:59:46 +0200
From: Jens Axboe <axboe@suse.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Andi Kleen <ak@suse.de>, linux-kernel@vger.kernel.org,
       linux-ide@vger.kernel.org
Subject: Re: Merging libata PATA support into the base kernel
Message-ID: <20060810135945.GV11829@suse.de>
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On Thu, Aug 10 2006, Alan Cox wrote:
> Ar Iau, 2006-08-10 am 14:20 +0200, ysgrifennodd Jens Axboe:
> > You make it sound much worse than it is. Apart for HPA, I'm not aware of
> > any setups that require extra treatment. And the amount of reported bugs
> > against it are pretty close to zero :-)
> 
> There are several variants where you get

Not very vocal users then, or I missed them.

> 	- hangs on resume
> 	- HPA mishandling
> 	- CRC errors and usually eventually a hang

HPA mishandling is a given, I agree that is a nasty problem and really
should be fixed. hangs on resume - the hardware, or the kernel talking
to it? crc errors sounds like bad transfer tuning after resume, but that
should be pretty identical to the on-boot one.

The low level drivers/ide drivers aren't well geared for suspend/resume,
perhaps that is what is causing most of these issues (apart from hpa).

-- 
Jens Axboe

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