[asterisk-bugs] [Asterisk 0015609]: [patch] WARNING[23025]: channel.c:952 __ast_queue_frame: Exceptionally long voice queue length queuing to Local

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15609 
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Reported By:                aragon
Assigned To:                russell
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Project:                    Asterisk
Issue ID:                   15609
Category:                   Core/Channels
Reproducibility:            have not tried
Severity:                   block
Priority:                   normal
Status:                     confirmed
Target Version:             1.4.28
Asterisk Version:           SVN 
JIRA:                       SWP-205 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  1.4  
SVN Revision (number only!): 206273 
Request Review:              
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Date Submitted:             2009-07-29 09:26 CDT
Last Modified:              2009-10-22 14:21 CDT
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Summary:                    [patch] WARNING[23025]: channel.c:952
__ast_queue_frame: Exceptionally long voice queue length queuing to Local
Description: 
Since upgrading to 1.4 SVN 206273 I see LOTS these errors when paging or
when calls are processed by app_queue.  When I see the messages during a
page I don't hear any paging (my Polycom phones continue to ring but no
paging audio).

I have no idea where the message is coming from how to reproduce, or
collect debug information for this specific issue.  I need help to find
root cause.
I think it could be caused by locking in autoservice since I see this lock
every time I see the warning message

=== Currently Held Locks ==============================================
=======================================================================
===
=== <file> <line num> <function> <lock name> <lock addr> (times locked)
===
=== Thread ID: 3057154960 (autoservice_run      started at [  238]
autoservice.c ast_autoservice_start())
=== ---> Waiting for Lock https://issues.asterisk.org/view.php?id=0
(autoservice.c): MUTEX 89 autoservice_run
&(&aslist)->lock 0x81798c8 (1)
=== --- ---> Locked Here: autoservice.c line 89 (autoservice_run)
=== -------------------------------------------------------------------


======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
duplicate of        0015976 abort in filestream_destructor / ast_fi...
related to          0015109 [patch] Abort by memory allocator, poss...
has duplicate       0015900 Console flood &amp; CPU load 100% when ...
related to          0015817 crash in local_attended_transfer, likel...
related to          0015845 Crash during attended transfer occurs
related to          0015616 random crashes
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 (0112626) aragon (reporter) - 2009-10-22 14:21
 https://issues.asterisk.org/view.php?id=15609#c112626 
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OK I found root cause.
Now I am way out of my element and someone else will have to fix/patch.

I installed each revision of SVN until I found the bad revision.
https://issues.asterisk.org/view.php?id=15609 introduced by r200991
https://reviewboard.asterisk.org/r/175/

4) Some minor optimizations in ast_frisolate(), and fix two bugs where it
would copy pointers to malloc'd data from the source frame but not clear
those pointers in the source frame (resulting in a likely crash if the
source frame was ever freed). In essence, the output frame was *not* fully
isolated from the source frame. There were only two users in the tree and
neither of them could cause this bug, though.

5) Use ast_frisolate() in the autoservice run thread, to avoid actually
duplicating a frame if it is not necessary. 

Issue History 
Date Modified    Username       Field                    Change               
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2009-10-22 14:21 aragon         Note Added: 0112626                          
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