[mythtv-users] IOBOUND: Arrrg, will it ever end?

Blammo blammo.doh at gmail.com
Wed May 18 04:43:18 UTC 2005


On 5/17/05, Donn <sharky at gmail.com> wrote:
> Over 2 weeks, I have read countless search hits and attempted several
> fixes to stop these awful IOBOUND message floods.  I'm in need of some
> serious help.  I have implemented many of the suggestions in the
> archives (and some of my own crazy ideas) with no luck.
> 
> Sometimes when recording two shows at once, mythtv gets locked into a
> series of IOBOUND messages:
> 
> 2005-05-16 23:36:43.145 IOBOUND - blocking in ThreadedFileWriter::Write()
> 2005-05-16 23:36:47.807 IOBOUND - blocking in ThreadedFileWriter::Write()
> 2005-05-16 23:36:52.579 IOBOUND - blocking in ThreadedFileWriter::Write()
> 2005-05-16 23:36:57.729 IOBOUND - blocking in ThreadedFileWriter::Write()

I would suggest a couple things:

1. Move to a newer kernel. I had some strangeness with 2.6.9 / 2.6.10
along the way with IO (air2pc / pvr-250 / 4-drive raid5) and moving to
2.6.11 cured almost all of them.

2. Check your IRQ's. lspci -v  and check for things sharing the same
IRQ. When you're faciing an IO problem sharing can become a big issue.
This was another key for me  in removing IO problems.

3. What's the RAM clock on your machine? Is it 133 or 200? Should be
133 to make the PC2100 happy.


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