[asterisk-bugs] [JIRA] (ASTERISK-26095) chan_iax2: Deadlock

[Joshua Colp (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-26095?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=230933#comment-230933 ] 

Joshua Colp commented on ASTERISK-26095:
----------------------------------------

As well - please try using a recent version of Asterisk 13 itself. Certified only receives fixes as a result of issues reported by Digium commercial customers and so your issue may be fixed in 13 itself.

> chan_iax2: Deadlock
> -------------------
>
>                 Key: ASTERISK-26095
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26095
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_iax2
>    Affects Versions: 12.5.1, 13.7.1
>         Environment: Ubuntu 14.04.1 LTS (GNU/Linux 3.13.0-32-generic x86_64)
> wcte13xp+    d161:800a Wildcard TE131/TE133
>            Reporter: Ben Crox
>            Assignee: Ben Crox
>
> Asterisk ran out of threads during some of iax2 to dahdi calls.
> 1 out of 20+ calls may end in such issue.
> Meanwhile, there are merely 6k calls per month, 400 call from iax2 to dadhi for the box. 20 hangs per month shall be considered quite severe. 
> No freepbx, no hylafax, just asterisk + libpri + dahdi + AMI applications
> When frozen, 1 of cpu might have 100% usage, memory usage is just 20% ~ 40%, harddisks, network, NAS are all fine.
> CLI is accessible, but no new log / verbose / debug messages. 
> Core show locks reveals huge amount of MUTEX lock by chan_iax2.so .
> fd limit is not yet a problem for any other new process.  
> core restart does not work ( and may held CLI ) 
> service asterisk restart does not work.
> Can only hard KILL safe_asterisk or reboot the box.
>  ( version 13.1-cert7  )



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