FreeBSD sound distortion problems with SB Live! fixed with PREEMPTION

[Travis Poppe]

On Wed, 08 Dec 2004 12:47:11 +0100
Stefan Ehmann <shoesoft at gmx.net> wrote:

> On Tue, 2004-12-07 at 23:48 -0700, Travis Poppe wrote:
> ...
> > To my amazement, it worked completely. Enabling PREEMPTION in the
> > kernel completely "fixes" this problem to the fullest extent. I have
> > not been able to reproduce the problem since using any of the
> > methods described above.
> > 
> > I'm hoping that with this new information someone might be able to
> > figure out what is truly causing this problem and can come up with a
> > solution (or is PREEMPTION a good solution?). It seems that only a
> > handful of drivers (emu10k1 is the one I'm having problems with)
> > have this problem. For the record, I am not the only one who has
> > reported this problem to the lists.
> 
> I also experience the same problems with sound you've described.
> 
> As PREEMPTION seems to stable for you, I tried to turn it on again.
> 
> Unfortunately PREEMPTION remains to be completely unusable for me. The
> system freezes within 5 minutes.
> 
> The problem is described here:
> http://lists.freebsd.org/pipermail/freebsd-current/2004-September/037949.html

This is the first time I've ever used PREEMPTION and have so far
experienced zero problems with it. However, I've been using it for less
than 24 hours.

-Travis Poppe