[asterisk-bugs] [Asterisk 0016974]: Deadlocks with ~2k MGCP users

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16974 
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Reported By:                adrien
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16974
Category:                   Channels/General
Reproducibility:            unable to reproduce
Severity:                   major
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.4.29.1 
JIRA:                        
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:             2010-03-05 14:30 CST
Last Modified:              2010-03-08 11:04 CST
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Summary:                    Deadlocks with ~2k MGCP users
Description: 
I experience a freeze of Asterisk when I was in 1.2.35 due to 'Avoided
deadlocks'.

So I move to 1.4.29.1 release and the issue seems to be the same. One
difference : I don't have "Avoided deadlocks" into Warning level but only a
lot of "Avoiding" during the day and ONE (ie. On one channel) repeated
several times after Asterisk has freezed.

I can post some debug output but not backtrace yet because I must
recompile with DEBUG_THREADS = #-DDUMP_SCHEDULER #-DDEBUG_SCHEDULER
#-DDEBUG_THREADS #-DDETECT_DEADLOCKS

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 (0119113) adrien (reporter) - 2010-03-08 11:04
 https://issues.asterisk.org/view.php?id=16974#c119113 
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I reproduce the problem. Just a bit different than previously.

I see the service down slowly. 2 of my CPE which were not in calls lost
the service. They sent "RSIP" for Heartbeat procedure without any answer
from Asterisk. But the calls already established were not cutted.

I try to get a backtrace but I'm not really familiar with GDB and the
pertinent informations to get in. I upload it to the case.

It's look like a freeze but this time without "Avoiding deadlock" flood.
On the contrary, I don't have deadlock from the beginning of the freeze
since the restart.

Moreover I don't need to do a kill. A "restart now" has ran.

lmadsen : core show locks is not implement in my CLI. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-03-08 11:04 adrien         Note Added: 0119113                          
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