[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:              2009-11-25 15:42 CST
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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 ...
has duplicate       0016096 Exceptionally long voice queue length q...
related to          0015817 crash in local_attended_transfer, likel...
related to          0015845 Crash during attended transfer occurs
related to          0015616 random crashes
related to          0016229 ERROR[24164]: utils.c:966 ast_carefulwr...
related to          0016081 [patch] utils.c:938 ast_carefulwrite: T...
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---------------------------------------------------------------------- 
 (0114297) aragon (reporter) - 2009-11-25 15:42
 https://issues.asterisk.org/view.php?id=15609#c114297 
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Definitely related to https://issues.asterisk.org/view.php?id=16081
I can reproduce both issues with database show
The locking on db.c during database show lasts for over 7 seconds on
average and sometimes much longer. Database show for example generates both
ast_carefulwrite warning and exceptionally long voice queuing events. They
both spew so fast out of the CLI you can only see both sets of warnings in
/var/log/asterisk/messages

To reproduce on our busy system is now easy.
* CLI do
database show
core show locks

core show locks
fireworx*CLI>
=======================================================================
=== Currently Held Locks ==============================================
=======================================================================
===
=== <file> <line num> <function> <lock name> <lock addr> (times locked)
===
=== Thread ID: -1251673200 (netconsole started at [ 1036] asterisk.c
listener())
=== ---> Lock https://issues.asterisk.org/view.php?id=0 (db.c): MUTEX 325
database_show &dblock 0x8180300 (1)
=== -------------------------------------------------------------------
===
=== Thread ID: -1252164720 (pbx_thread started at [ 2646] pbx.c
ast_pbx_start())
=== ---> Waiting for Lock https://issues.asterisk.org/view.php?id=0 (db.c):
MUTEX 178 ast_db_get &dblock
0x8180300 (1)
=== --- ---> Locked Here: db.c line 325 (database_show)
=== -------------------------------------------------------------------
===
=======================================================================

[Nov 20 15:42:50] NOTICE[4422]: utils.c:938 __ast_carefulwrite: Timed out
trying to write at line 73 of ast_cli in file cli.c
[Nov 20 15:42:50] NOTICE[4422]: utils.c:938 __ast_carefulwrite: Timed out
trying to write at line 73 of ast_cli in file cli.c
[Nov 20 15:42:50] NOTICE[4422]: utils.c:938 __ast_carefulwrite: Timed out
trying to write at line 73 of ast_cli in file cli.c 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-11-25 15:42 aragon         Note Added: 0114297                          
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