Summary:ASTERISK-02959: bad clicking/popping only with SMP kernel 2.6.x
Reporter:papy (papy)Labels:
Date Opened:2004-12-10 02:59:29.000-0600Date Closed:2011-06-07 14:04:40
Versions:Frequency of
Environment:Attachments:( 0) clicking-call-2.gsm
Description:Problem occurs on 3 different Debian unstable machines: 2 x Dell SC400 hyperthreading uniprocessor and 1 x Dell Precision MT530 biprocessor.

- kernel 2.6.9 WITH SMP ENABLED
- asterisk 1.0.2
- chan_capi 0.3.5
- Eicon Diva 4BRI

Call 1 is proceeding normally, two minutes later call 2 comes in and triggers the clicking on both calls; after quickly hanging up call 2 the clicking stops on call 1.

We record all our calls so I attached two GSM files (call 1 and call 2) to illustrate the problem. (to listen: sox <gsm-file> -t ossdsp /dev/dsp)

The problem goes away when rebooting whith a non-SMP kernel.
Comments:By: papy (papy) 2004-12-10 03:03:30.000-0600

Couldn't upload call-1 file: it triggers an "application error" in the BTS. The file is 1M is size.

The files are available at:


By: Mark Spencer (markster) 2004-12-10 18:06:56.000-0600

This is a hardware technical support issue and does not belong on the Asterisk bug tracker.  Please contact your hardware supplier to resolve the problem.