[CentOS] centos 5.1 x86_64 and ztdummy

Wed Apr 2 20:59:00 UTC 2008
Chris Miller <centos at scratchspace.com>

Jerry Geis wrote:

> This version of asterisk has always worked for me before on centos 5.1 
> but now there is a newer kernel.
> Any one know anything about this?

I don't run x86_64 on my Asterisk boxes, but I did see an issue like 
this under Fedora where multiple drivers were loaded. This was in 
Asterisk 1.2 about a year ago. Check lsmod to see if a previous run 
of zaptel loaded all the other drivers as it does by default. I have 
a few i386 CentOS 5.1 servers running Asterisk 1.2.26-2 with ztdummy 
just fine.

RTC, was (and may still be) apparently used in the past to support 
SMP, all CentOS 5 kernels support SMP by default. Just throwing this 
out there as a potential debugging direction to go if it is indeed a 
kernel/RTC related problem. For example, you could recompile the 
kernel with UP as a test, but that takes time... Might check out the 
release notes to see if anything in this area of the kernel changed. 
You could also try your same dialplan and audio on an i386 box.

Hope this helps.