[asterisk-bugs] [JIRA] (ASTERISK-29071) memory leak in confbridge rises memory usage in frame.c linear per time

[Stefan Ruf (JIRA)]

Stefan Ruf created ASTERISK-29071:
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             Summary: memory leak in confbridge rises memory usage in frame.c linear per time
                 Key: ASTERISK-29071
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-29071
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Core/Bridging
    Affects Versions: 16.13.0, 13.36.0
         Environment: Linux svast20 4.12.14-94.41-default #1 SMP Wed Oct 31 12:25:04 UTC 2018 (3090901) x86_64 x86_64 x86_64 GNU/Linux
            Reporter: Stefan Ruf


Using ConfbridgeMute / ConfbridgeUnMute over AMI and additionally MuteAudio on/off results in increasing values of frame.c - shown by "memory show summary". The values rises constant over time and channel. So a system with 24 GB RAM using 5 confbridges permanent with about 20 channels each ist filled up within a day and asterisk restarts.

The problem ist reprorduceable and starts at a certain point. This point is action-id 1705904476_335#berta-ddab9ea6-dcb4-4e83-b9bf-ff5e44325110.
At action-id 1705904476_336#berta-67e059f6-fa67-4d4a-a73a-d5fbd4cf6475 the value frame.c increases with double speed per time. Please see attached file <ami_commands.txt>. 
Asterisk had been compiled with MALLOC_DEBUG and “cache_media_frames = no” in asterisk.conf
For one channel the value increases about 32 per second; for two channels the value increases about 64 per second.

Tested versions of asterisk are 16.13.0, 16.8-cert3, 13.36.0, 13.21-cert6, all of them with the described behaviour.



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