DVD playback not working

Steve O'Hara-Smith steve at sohara.org
Mon Aug 11 14:53:25 PDT 2008

On Mon, 11 Aug 2008 08:22:19 -0700 (PDT)
Matthew Dillon <dillon at apollo.backplane.com> wrote:

> :> Indeed it fixes the issue. Which makes me wonder what broke it as I'm
> :> sure that I've been watching DVD's using DragonFly and gcc4 was default
> :> for sure then.
> :
> :	It broke for me when I switched from an up to date preview to
> head :from 7 January.
>      I think it was a complete luck of the draw prior to the physio fix,
>      whether that char buffer declared on the stack in the dvd library
>      happened to be properly aligned or not for DMA.

	It was better than that - I've been running DragonFly and playing
and backing up DVDs with it since early 2005, it was rock solid up until
that Jan 7 update (and before that in FreeBSD 4.x) it's never worked after
that until now.

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