[asterisk-dev] MMX in Zaptel

Tzafrir Cohen tzafrir.cohen at xorcom.com
Sat Sep 22 08:43:52 CDT 2007


On Sat, Sep 22, 2007 at 06:32:49AM -0700, Trevor Peirce wrote:
> Tzafrir Cohen wrote:
> > Reminder: zconfig.h includes a defina called CONFIG_ZAPTEL_MMX,
> > undefined by default, to enable/disable MMX support in Zaptel. It also
> > warns of problems with various CPUs.
> >   
> This worries me a bit. I've never been able to have zaptel act in a 
> stable manner when I enable this on an Intel(R) Celeron(R) CPU 1.70GHz. 
> There's another celeron I've tried it on as well where I have not had 
> success.
> 
> When enabling MMX I'd hear all sorts of weird sounds and distortions in 
> conversations. Disabling MMX and all was fine. The last time I tried to 
> use MMX was sometime around June/July with both the 1.2 and 1.4 releases.
> 
> I don't have any more information to provide other than it doesn't seem 
> to work with Celerons, even though they say they support MMX.

What kernel version do you use, exactly? What version of gcc?

-- 
               Tzafrir Cohen       
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