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

[Tejun Heo <htejun@gmail.com>]

Justin Mattock wrote:
> O.K. I applied the patch here is what I'm seeing:
> 
> [  920.237141] end_request: I/O error, dev sr0, sector 2931560
> [  920.237141] Buffer I/O error on device sr0, logical block 366445
> [  920.237141] Buffer I/O error on device sr0, logical block 366446
> [  920.237141] Buffer I/O error on device sr0, logical block 366447
> [  920.237141] Buffer I/O error on device sr0, logical block 366448
> [  920.237141] Buffer I/O error on device sr0, logical block 366449
> [  920.237141] Buffer I/O error on device sr0, logical block 366450
> [  920.237141] Buffer I/O error on device sr0, logical block 366451
> [  920.237141] Buffer I/O error on device sr0, logical block 366452
> [  920.237141] Buffer I/O error on device sr0, logical block 366453
> [  920.237141] Buffer I/O error on device sr0, logical block 366454
> [  925.431105] __ratelimit: 10100 messages suppressed
> [  925.431118] Buffer I/O error on device sr0, logical block 371516
> [  930.772658] __ratelimit: 2407 messages suppressed
> [  930.772658] Buffer I/O error on device sr0, logical block 372720
> [  935.674943] __ratelimit: 6995 messages suppressed
> [  935.674955] Buffer I/O error on device sr0, logical block 376218
> [  940.685317] __ratelimit: 16949 messages suppressed
> [  940.685329] Buffer I/O error on device sr0, logical block 384693
> [  945.770547] __ratelimit: 17881 messages suppressed
> [  945.770558] Buffer I/O error on device sr0, logical block 393634
> [  950.777243] __ratelimit: 19031 messages suppressed
> [  950.777243] Buffer I/O error on device sr0, logical block 403150
> [  955.788427] __ratelimit: 19035 messages suppressed
> [  955.788439] Buffer I/O error on device sr0, logical block 412668
> [  961.575327] __ratelimit: 16603 messages suppressed
> [  961.575338] Buffer I/O error on device sr0, logical block 420970
> [ 1006.919733] __ratelimit: 9315 messages suppressed
> 
> Almost as if the drive is taking to long to think, by then the cache
> has run out, and the FPS changes,
> the movie itself doesn't become choppy like before, just freezes.
> If you have any other ideas I'm up for that to see.
> regards;

Eh.... strange.  Can you post full kernel log?  And does the dvd work if
you restart playing?

-- 
tejun