Bug#447245: zaptel-source: OSLEC echo canceler renders zaptel channels unusable

Tzafrir Cohen tzafrir.cohen at xorcom.com
Thu Dec 27 10:13:58 UTC 2007


On Thu, Dec 27, 2007 at 03:40:32AM +0200, Tzafrir Cohen wrote:
> 
> Some progress: after much debugging, David Rowe noticed that at least 
> one source of problems is the following code from oslec/oslec_wrap.c:
> 
> static __inline__ uint64_t cycles(void) {
>   uint64_t x;
>   __asm__ volatile ("rdtsc\n\t" : "=A" (x));
>   return x;
> }
> 
> 
> This seems to cause harm on amd64. Is this a problem with AMD? with x86_64?

Could you please try the attaced patch?

-- 
               Tzafrir Cohen
icq#16849755              jabber:tzafrir.cohen at xorcom.com
+972-50-7952406           mailto:tzafrir.cohen at xorcom.com
http://www.xorcom.com  iax:guest at local.xorcom.com/tzafrir
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