[asterisk-bugs] [JIRA] Commented: (ASTERISK-20190) WARNING messages spammed :"channel.c: Exceptionally long voice queue length queuing to ..." CPU usage spikes and all extensions enter InUse or OnHold

[Rusty Newton (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-20190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=195443#comment-195443 ] 

Rusty Newton commented on ASTERISK-20190:
-----------------------------------------

Debugging deadlocks: Please select DEBUG_THREADS and DONT_OPTIMIZE in the Compiler Flags section of menuselect. Recompile and install Asterisk (i.e. make install).  This will then give you the console command "core show locks." When the symptoms of the deadlock present themselves again, please provide output of the deadlock via:

# asterisk -rx "core show locks" | tee /tmp/core-show-locks.txt
# gdb -se "asterisk" <pid of asterisk> | tee /tmp/backtrace.txt 
gdb> bt
gdb> bt full
gdb> thread apply all bt

Then attach the core-show-locks.txt and backtrace.txt files to this issue. Thanks!


If this issue can be reproduced, please describe how to reproduce the issue.

Please additionally provide an Asterisk full log with VERBOSE and DEBUG messages of at least level 5 enabled. Include a log that covers several minutes before the issue occurs if the file is not too large. *Please attach the file as a text file and compressed if necessary*

queue configuration or dialplan files will be helpful as well.



> WARNING messages spammed :"channel.c: Exceptionally long voice queue length queuing to ..."  CPU usage spikes and all extensions enter InUse or OnHold
> ------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-20190
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20190
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>    Affects Versions: 1.8.11.1, 1.8.14.1
>         Environment: Linux CentOS 6 kernel 2.6.32-71.el6.x86_64, 2GB RAM, 5 queues, 3 with strategy=ringall, 2 with strategy=roundrobin, error message in queue with strategy=roundrobin, agents Local/012 at agents, Local/018 at agents, ....
>            Reporter: Alexander Cruz
>         Attachments: asterisklog.txt
>
>
> occur before the blockade, log file show the following error message
> [Aug  2 09:31:12] WARNING[11780] channel.c: Exceptionally long voice queue length queuing to Local/012 at agents-176a;2
> then CPU load goes to 900% and up. uptime command show
> 10:35:29 up 3 days, 14 min,  2 users,  load average: 9.05, 9.89, 9.75
> then all extensions stay on InUse state or OnHold state.
> Solutions reboot asterisk.

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