Summary:ASTERISK-05506: Severe intermittent reverberation/echo eventually resulting in system crash.
Reporter:Adam Dobrin (adobrin)Labels:
Date Opened:2005-11-08 10:15:13.000-0600Date Closed:2011-06-07 14:00:57
Versions:Frequency of
Description:I have nothing in asterisk or system logs, but about once a day, for about an hour or two sound from Zaptel lines begins to reverberate severely.  After about 1-2 hours of sound distortion, the asterisk machine becomes unresponsive.

This is a recent upgrade to 1.2b2--I upgraded
zaptel, libpri, asterisk

no other changes to the system were made. (this was not happening with 1.2b1

as this is a production machine, i have reverted to beta1.


dual amd x64 ubuntu hoary machine
spandsp (i didn't recompile this (or app_txfax/rxfax))--that shouldn't case this though.. right?
Comments:By: BJ Weschke (bweschke) 2005-11-08 10:38:26.000-0600

you should absolutely recompile spandsp and app_txfax and app_rxfax if you've upgrade zaptel and asterisk.

By: alric (alric) 2005-11-10 21:58:56.000-0600

This still happening for you?  Have you tried the suggestion?

By: Kevin P. Fleming (kpfleming) 2005-11-10 22:14:54.000-0600

Closing until evidence that recompiling the apps didn't solve the problem is available.

By: Adam Dobrin (adobrin) 2005-11-11 08:48:22.000-0600


I've recreated the installation, this time recompiling the txfax and rxfax modules, as well as the format_mp3 module in addons (which i hadn't done before), with exactly the same results.  the echo/reverb seems to be *instant* btw.  and after a call or two causes the machine to crash.

Incidentally, rc1 won't compile on the machine, i get errors in file.h saying taht stdio.h needs to be included first.  And while I'm on the subject of not compiling, on x86_64 smp, i *always* have to remove the -march line in the Makefile for codecs/gsm--kindof a pet peeve--and need to add -lz to the toplevel Makefile for g729.

If you have more suggestions, I have some time this weekend to try them.

By: Kevin P. Fleming (kpfleming) 2005-11-11 11:07:36.000-0600

The x86_64 problem is _not_ a problem in the codecs/gsm Makefile; this was just addressed in another bug last night. It is a problem with your compiler not supporting the 'k8' architecture type. You can either edit the main Makefile to remove the 'march=k8' setting or upgrade to a more modern compiler on your 64-bit box.

The g729 codec requiring libz has already been fixed and new versions of the codec binaries have been on our FTP server for a month or more; this was announced on the mailing lists as fixing this specific problem.

(Please don't report other unrelated issues in an open bug, it's hard to manage them this way)

We will need to be able to see your configuration, and possibly get access to your machine, before we will have any hope of finding this problem. It's obviously caused by something in your configuration, since nobody else has reported anything similar to this.

By: Mark Spencer (markster) 2005-11-25 13:28:52.000-0600

Suspending due to lack of activity.