[asterisk-bugs] [Asterisk 0017873]: Record audio channels gets out of sync

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17873 
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Reported By:                aureliors123
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17873
Category:                   Applications/app_mixmonitor
Reproducibility:            random
Severity:                   minor
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           1.6.2.10 
JIRA:                       SWP-2320 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-08-16 22:16 CDT
Last Modified:              2011-03-05 02:40 CST
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Summary:                    Record audio channels gets out of sync
Description: 
When recording with mixmonitor, some record files channels gets out of
sync.
The scenario was:
- Medium call traffic: More than 60 and less than 120 concurrent calls.
- All calls are recorded
- Codec: Alaw
- Record File format: WAV GSM
- Processor load: Never more than 50%
- Asterisk Version: 1.6.2.10 (also happened in older versions, since
1.4.19)
- SO Debian 5.0.3 - 2.6.26-2-686
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 (0132653) iasgoscouk (reporter) - 2011-03-05 02:40
 https://issues.asterisk.org/view.php?id=17873#c132653 
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To update anyone who is 'monitoring' this issue.

Over the last few weeks, I've had no problems since my out of sync issues
were resolved following linux updates, and taking a very pragmatic approach
to fedora and asterisk updates.   Following any updates, a full shutdown
and cold startup performed followed by a test call to check on the
mixmonitor files.

Until today, everything has been ok.  

On 4th March at 7:47 i installed the latest DAHDI 2.4.1 (both Linux and
tools), and shutdown/restart/test call and all was ok.

I've been using the SVN versions of asterisk for the last week, and
everything has been ok;   at 08:26 i took the SVN 309676, and followed the
usual process and everything was ok.

At 17:20 i took fedora updates : 

 augeas-libs         i686         0.8.0-1.fc14            updates        
301 k
 graphviz            i686         2.26.3-2.fc14           updates        
970 k
 libpurple           i686         2.7.10-1.fc14           updates        
6.2 M

and again, everything was ok.

I made/received a number of calls after then, and all mixmonitor files are
ok.

Then, between a space of 10 mins, withing nothing occuring, an incoming
call now contains 'out of sync' in/out channels.

So am completely dumbfounded now !

Ian 

Issue History 
Date Modified    Username       Field                    Change               
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2011-03-05 02:40 iasgoscouk     Note Added: 0132653                          
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