[mythtv-users] Unable to playback, high amount of i/o, low cpu usage.

[Mark]

Several people have mentioned this bug, one fellow provided a bugtrace, 
but there hasn't been much
discussion on it.  If you find anything out, be sure to post it.

Kevin J. Slater wrote:

>I'm wondering if anyone else is seeing this behavior? Every so often when trying
>to playback a recorded show I will see the following - High amounts of disk
>activity (as indicated by the disk activity led, don't know what tool I could
>use to hone in on this) with top showing low cpu and low load factor. The show
>may play for the first few seconds. Then it will get stuck and you can't move
>around and pretty much have the kill the frontend and restart it to get out of
>the situation. It almost seems like it's having trouble seeking in the file. The
>error messages in the xterm window are usually a few of "rebuffering (xxx yyy)".
>(Sorry, I'd be more specific, but I'm away from the machine.)
>
>Normally, I just delete the show and move on, but this morning it happened to a
>recording of a cartoon for my 5 yr old son and so I'm more motivated to attempt
>to solve it now.
>
>The hardware is an EPIA M9000 with an ATV TV Wonder VE, RTJPeg recording profile
>with Quality of 170, capture size of 352 x 480, audio is MP3 with quality of 7.
>The show was over for about 15 minutes when playback was attempted. I'm using a
>CVS build that is post .11, but is probably a couple of weeks old by now. OS is
>Redhat 7.3 with a custom kernel (2.4.20-ac2 I think). I'm planning to upgrade to
>RH 9, that's why I'm not up-to-date on CVS. Harddisk has dma turned on.
>
>I try to follow the development and user lists by reading the digests and I
>haven't seen mention of this problem or a fix that would address something like
>this, but with the volume of messages I could very well have missed it.
>
>...Kevin
>
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