[asterisk-users] Zaptel kernel module load order

[Tzafrir Cohen]

On Tue, May 01, 2007 at 02:53:33PM -0700, C. Chad Wallace wrote:
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> Mitch Jackson wrote:
> > Evening,
> >
> > My latest asterisk box is having a difficult problem.  It is
> > configured with one TE210P and TDM400P with four FXO modules.  I'm
> > running FC6.
> >
> > The TE210P only has a single PRI.
> >
> > When the system boots, it is completely random what order the zaptel
> > modules will get loaded in.  Sometimes zttool shows the FXO as the
> > last span, sometimes as the first.  When it does load as the first,
> > which happens more often, nothing will initialize properly.  When this
> > happens, I have to unload all the zaptel modules, and re-load them
> > over and over again, until the hardware comes up in the correct order.
> > The order it is loaded is in no way related to what order I load the
> > modules on the command line.  This problems makes it unlikely that
> > asterisk will start properly if the system is rebooted.
> >
> > Is there something I can do to ensure the modules get loaded in the
> > correct order?
> If you use udev (and subsequently modprobe), you can override the
> install command for the TDM card to load the T1 card first:
> 
> Create a file in the /etc/modprobe.d directory, and put the following
> line in it:
> 
> install wctdm4xxp modprobe wcte21xp && modprobe --ignore-install
> wctdm4xxp $CMDLINE_OPTS && /sbin/ztcfg

What happens if you want to pass module arguments to wctdm4xxp ?

You actually pass it the same arguments you have passed to wcte21xp .

Oh, and you still run the automatic ztcfg, which is bad.

> 
> (Make sure it's all one line; your mail reader might break it.)
> 
> This method works for me, with a TE110P and a TDM2400P in the same box. 
> However, I am using Debian, and I'm not sure if modprobe and udev work
> the same way in FC6.

I believe that they do.


Maybe opt for the separation of span registration time from module load
time?

-- 
               Tzafrir Cohen       
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