linux-kernel - Re: macbook pro dvd playback after suspend Buffer I/O error

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Message-ID: <dd18b0c30806110045s6d19a034yd89b892441bd1621@mail.gmail.com>
Date:	Wed, 11 Jun 2008 07:45:05 +0000
From:	"Justin Mattock" <justinmattock@...il.com>
To:	"Tejun Heo" <htejun@...il.com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: macbook pro dvd playback after suspend Buffer I/O error

On Wed, Jun 11, 2008 at 2:00 AM, Tejun Heo <htejun@...il.com> wrote:
> Andrew Morton wrote:
>> On Fri, 4 Apr 2008 05:07:45 +0000 "Justin Mattock" <justinmattock@...il.com> wrote:
>>
>>> When playing a DVD and then suspending the system while the DVD is
>>> still in play, upon wakeup I'm receiving a Buffer I/O error on device
>>> sr0, logical block 356490.
>>> the DVD will continue to play but then gmplayer complains: Warning!
>>> FPS changed 23.976 -> 29.970 (-5.994005) [4] then the video becomes
>>> very choppy. When looking at osx in the same test the DVD will be
>>> paused until the cd player aligns itself, then playback will start.
>>> With looking further at this I think this is an issue of a library or
>>> codec, So with this in mind is there a package that I might look at to
>>> see if this resolves the issue. Attached is dmesg of the Buffer I/O
>>> regards;
>>
>> An ata thing, I assume.  Let's cc linux-ide.
>>
>> Is this new behaviour in 2.6.25-rc8, or were earlier kernels OK?
>
> This is due to UNIT ATTENTION condition triggered by reset during
> resume.  The following patches should fix it.
>
> http://marc.info/?l=linux-ide&m=121309016918976&w=2
> http://marc.info/?l=linux-ide&m=121309016918979&w=2
>
> Thanks.
>
> --
> tejun
>

alright!! I'll give that a test and see; give me some time right now
it's midnight, and a couple of beer's in; so doing anything that
requires
thinking isn't going to happen, but tomorrow it will.
regards;

-- 
Justin P. Mattock
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