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

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Andrew Morton wrote:
> On Fri, 4 Apr 2008 05:07:45 +0000 "Justin Mattock" <justinmattock@xxxxxxxxx> 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
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