[asterisk-bugs] [JIRA] (ASTERISK-27094) res_fax: Deadlock when using Local channels and fax gateway

[David Brillert (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-27094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=243364#comment-243364 ] 

David Brillert commented on ASTERISK-27094:
-------------------------------------------

OK I reproduced this on *13.21
Sorry for the delay but I lost access to the environment where I could reliably reproduce this problem and just got it back.
I have to forward the incoming call and I have to enable mixmonitor recording flag in order to reproduce this on 100% of calls.
Compiled with DONT_OPTIMIZE BETTER_BACKTRACES DEBUG_THREADS
Output of ast_coredumper and core show locks and Asterisk CLI is included in attached deadlock_2018_05_09.rar file


> res_fax: Deadlock when using Local channels and fax gateway
> -----------------------------------------------------------
>
>                 Key: ASTERISK-27094
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27094
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_fax
>    Affects Versions: 13.15.1, 13.17.0
>            Reporter: David Brillert
>         Attachments: coreshowlocks.txt, gdbthreadapplyallbtfull(1).txt, gdbthreadapplyallbt.txt
>
>
> All calling via SIP PSTN carrier.
> progressinband = yes
> directmedia =  yes
> prematuremedia  =  no
> Incoming call A is answered with progress
> Then bridged with progress to external call B
> Call is processed with audio OK
> But no further SIP processing in console and all SIP further signalling dies including OPTIONS packets.



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