[asterisk-bugs] [Asterisk 0015686]: [patch] app_queue crashes randomly, it seems to be during call-transfers

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15686 
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Reported By:                Hatrix
Assigned To:                dvossel
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Project:                    Asterisk
Issue ID:                   15686
Category:                   Applications/app_queue
Reproducibility:            random
Severity:                   crash
Priority:                   normal
Status:                     feedback
Target Version:             1.4.28
Asterisk Version:           SVN 
JIRA:                       SWP-261 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-08-10 02:16 CDT
Last Modified:              2009-11-27 12:15 CST
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Summary:                    [patch] app_queue crashes randomly, it seems to be
during call-transfers
Description: 
We have had lot's of crashes in app_queue in our system. As the system was
never really stable it received software upgrades as well as totally new
(IBM) Hardware.

The crashes to app_queue are once or twice a week, sometimes more often,
mostly we have NO indication in the asterisk Log-Files. Ultimately (and
this may be because of a debug recompile) we get lines in the error log
like these:

[Aug  7 19:07:23] ERROR[27115]
/usr/local/src/asterisk-1.4.26/include/asterisk/lock.h: app_queue.c line
2559 (update_queue): Error obtaining mutex: Invalid argument

Funny thing is the system crashed on August the 6th (I do not have a
coredump) and on August the 7th at nearly the same time:

Aug  7 19:07:23 logitravel-voip2 kernel: [7905412.479435] asterisk[27115]:
segfault at d5d69fd0 ip b798757e sp b5258ef0 error 5 in
app_queue.so[b7984000+1c000]
Aug  6 19:00:57 logitravel-voip2 kernel: [7720142.069484] asterisk[7274]:
segfault at bb0f1be8 ip b796e57e sp b55f8ef0 error 4 in
app_queue.so[b796b000+1c000]


I have attached a backtrace, with bt, bt full and threads applied. I hope
it's any help because our client (a medium sized call-center) is waiting
for a solution.

We consider right now downgrading to debian stable (1.4.21.2) 

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---------------------------------------------------------------------- 
 (0114331) aragon (reporter) - 2009-11-27 12:15
 https://issues.asterisk.org/view.php?id=15686#c114331 
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dvossel: Recent developments in https://issues.asterisk.org/view.php?id=15609
have removed the channel.c
warnings.
Your patch was in service for 24 hours processing 24 calls per second and
no crashes. 

Issue History 
Date Modified    Username       Field                    Change               
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2009-11-27 12:15 aragon         Note Added: 0114331                          
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