[asterisk-bugs] [JIRA] (ASTERISK-21737) [patch] - Crash during transfer from DAHDI/SIP to SIP/SIP in ast_format_cap_append called from remote bridge loop

[Matt Jordan (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-21737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=215697#comment-215697 ] 

Matt Jordan commented on ASTERISK-21737:
----------------------------------------

Hey Alec - I'm going to go ahead and commit the patch, since I'm fairly confident it won't cause any harm at the least. The locks are in a location where the actions taken by the functions they wrap won't cause a deadlock, as those calls don't lock anything else or invert any locking order. I'll close this issue for now as a result - but if you run into the same crash, we can always reopen this.
                
> [patch] - Crash during transfer from DAHDI/SIP to SIP/SIP in ast_format_cap_append called from remote bridge loop
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-21737
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21737
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/Transfers, Core/Bridging
>         Environment: Asterisk SVN-branch-11-r385594 
>            Reporter: Alec Davis
>         Attachments: ASTERISK-21737-11.diff, ASTERISK-21737-1.8.diff, bug_apr30.diff.txt, gdb-apr30.txt, GDB_output_sample_10_01_2014.txt
>
>
> DAHDI call into queue.
> SIP agent answers, then transfer to SIP0007.
>  
> Crashed just after/during a transfer.

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