[Asterisk-Users] modprobe -r ztd-eth locks up machine...

Martin Pycko martinp at digium.com
Wed Dec 17 10:18:52 MST 2003

Did you ifdown the dynamic interfaces first ?


On Wed, 17 Dec 2003, Steven Critchfield wrote:

> On Wed, 2003-12-17 at 10:36, john wrote:
> > Hi,
> >
> > I have just begun working with TDMoE running between 2 fiber nics the
> > dynamic span works great. In my main asterisk box's startup file I just
> > 'modprobe tor2', then start asterisk. The zaptel, ztdynamic & ztd-eth
> > modules all load by themselves when tor2 is loaded. If I stop asterisk then
> > 'modprobe -r tor2' the  tor2 module is removed but the other three remain.
> > If I then 'modprobe -r ztd-eth' it causes a complete lock up on the machine.
> > The remote machine does not have any zap hardware in it yet and doesn't have
> > these difficulties.
> >
> > I know I can just restart the machine but it is in a production environment
> > (soon to increase from a few to ~30 simultaneous calls) and it is nice to be
> > able to make changes and
> > cvs update installs without restarting.
> >
> > Has anyone experienced this or am I just missing a step or going in the
> > wrong order?
> Unloading of modules was of such a concern that it almost didn't make it
> into newer kernels. So you should probably not unload them. A production
> machine should have specified service windows available. Also decent
> hardware should be able to reboot fairly fast. The machine I have as our
> local asterisk machine can go from reset button to accepting new calls
> in under 50 seconds. Our remote machine is around 90 secs. Depending on
> y our call volume, and system setup, you should be able to handle this.
> --
> Steven Critchfield  <critch at basesys.com>
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