asterisk users - Jul 2010 - Problems with Dahdi 2.3.0.1 trying to load OSLEC

Hello list,


I'm facing a little issue with dahdi attempting to load the OSLEC echo 
canceller into my current kernel.

After compiling dahdi 2.3.0.1 with OSLEC support, I get the following 
error when set 'oslec' as the echocanceller:

DAHDI_ATTACH_ECHOCAN failed on channel 1: Invalid argument (22)

- Similar errors are *NOT* present using other echo canncelers.
- I tried adding the 'dahdi_echocan_oslec' line to /etc/dahdi/modules 
and the error continues.

I'm running Slackware Linux 13.0, Kernel 2.6.29.6-smp

# dmesg
...
dahdi_echocan_oslec: Unknown symbol oslec_create
dahdi_echocan_oslec: Unknown symbol oslec_update
dahdi_echocan_oslec: Unknown symbol oslec_free
...


Could someone point me to some documentation about this incident?


Regards,


-- 
Jose P. Espinal
http://www.eSlackware.com
IRC: Khratos @ #asterisk / -doc / -bugs

On Mon, Jul 19, 2010 at 05:06:37PM -0400, Jose P. Espinal
wrote:
> Hello list,
> 
> 
> I'm facing a little issue with dahdi attempting to load the OSLEC echo 
> canceller into my current kernel.
> 
> After compiling dahdi 2.3.0.1 with OSLEC support, I get the following 
> error when set 'oslec' as the echocanceller:
> 
> DAHDI_ATTACH_ECHOCAN failed on channel 1: Invalid argument (22)
> 
> - Similar errors are *NOT* present using other echo canncelers.
> - I tried adding the 'dahdi_echocan_oslec' line to
/etc/dahdi/modules
> and the error continues.
> 
> I'm running Slackware Linux 13.0, Kernel 2.6.29.6-smp
> 
> # dmesg
> ...
> dahdi_echocan_oslec: Unknown symbol oslec_create
> dahdi_echocan_oslec: Unknown symbol oslec_update
> dahdi_echocan_oslec: Unknown symbol oslec_free
> ...
> 
> 
> Could someone point me to some documentation about this incident?
You're missing the core module of OSLEC: 'echo' or 'oslec'.

-- 
               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

Hello Jose.

I've found the same problem on some servers and I solved it renaming (or
deleting) the echo.ko driver already present in the binary kernel
distribution:

In my system is something like:
/lib/modules/2.6.27.45-0.1-default/kernel/drivers/staging/echo/echo.ko

Hope this helps you.
Best regards,

Marco Signorini.

-- 
============================- http://www.ethermania.com - 
- http://www.ingegnitech.com - 




Jose P. Espinal wrote:
> Hello list,
>
>
> I'm facing a little issue with dahdi attempting to load the OSLEC echo 
> canceller into my current kernel.
>
> After compiling dahdi 2.3.0.1 with OSLEC support, I get the following 
> error when set 'oslec' as the echocanceller:
>
> DAHDI_ATTACH_ECHOCAN failed on channel 1: Invalid argument (22)
>
> - Similar errors are *NOT* present using other echo canncelers.
> - I tried adding the 'dahdi_echocan_oslec' line to
/etc/dahdi/modules
> and the error continues.
>
> I'm running Slackware Linux 13.0, Kernel 2.6.29.6-smp
>
> # dmesg
> ...
> dahdi_echocan_oslec: Unknown symbol oslec_create
> dahdi_echocan_oslec: Unknown symbol oslec_update
> dahdi_echocan_oslec: Unknown symbol oslec_free
> ...
>
>
> Could someone point me to some documentation about this incident?
>
>
> Regards,
>
>
>