System freeze when accessing DVD with DMA active (was: Kernel Options Affect Ogle?)

On Tue, 8 Apr 2003 13:10:38, Dustin Wilson wrote:
> Thanks, it was almost certainly dma.  I got it working now, but I had
> to turn off SCSI emulation.  I guess that is fine as I don't do a
> whole lot of burning under linux anyways (and I hear of ways to do it
> with the drive as ATAPI, which I was planning on researching).
>
> Anyways, it is a shame that is so hard to get dma, devfs, and
> scsi-emulation working together.  I followed the instructions on the
> web site, but it said there was "no such directory" or something like
> that.

OOPS, that /might/ be the solution to my never-ending problems here:
My system (dual athlon 1GHz, 1GB RAM, DVD-reader/CD-writer combo
drive) uses to freeze both unter SuSE 8.2 and 9.0 after max. 10
minutes of nicely playing DVDs using ogle: but only if I have DMA
active.

I tried all different DMA modes but it made no difference.

Besides from that ogle is absolutely great and I love the navigation
feature: we are using it in the TV computer in the living room which
replaced the old TV set we had before. :-)

Karl-Heinz


> On Tuesday 08 April 2003 10:01 am, Bj|rn Englund wrote:
> > Sat Apr 05 2003, Dustin Wilson wrote:
> > > I have been having a whole lot of problems since I recompiled my
> > > kernel. I am questioning whether there are any kernel changes I
> > > made that could be causing ogle troubles.  I have tried turning
> > > off scsi-emulation (one of the few things I think I had changed in
> > > my kernel options) and it is still no dice.
> > >
> > > Every second or so the frame freezes then skips, then freezes then
> > > skips. The terminal outputs a bunch of garbage.  Here is the stuff
> > > I get.
> >
> > Seems like dma problem.
> > Checkout faq #31 http://www.dtek.chalmers.se/groups/dvd/faq.shtml
> > You might have turned off dma in your new kernel or haven't included
> > dma support for your chipset.
> >
> > /Björn
> > _______________________________________________
> > Ogle-user mailing list
> > [email protected]
> > http://lists.berlios.de/mailman/listinfo/ogle-user

-- 
Karl-Heinz Zimmer, Senior Software Engineer, Klarälvdalens Datakonsult AB
<mailto:[email protected]>            <mailto:[email protected]>
 "For every complex problem there is an
  answer that is clear, simple, and wrong."  H. L. Mencken, 1880 - 1956

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