[asterisk-bugs] [Asterisk 0016057]: [patch] Asterisk crashes with "Fixup failed on channel XXX, strange things may happen."

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16057 
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Reported By:                amorsen
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16057
Category:                   Core/General
Reproducibility:            sometimes
Severity:                   crash
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           1.4.33 
JIRA:                       SWP-303 
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:             2009-10-12 08:23 CDT
Last Modified:              2010-09-15 05:17 CDT
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Summary:                    [patch] Asterisk crashes with "Fixup failed on
channel XXX, strange things may happen."
Description: 
[Oct 12 11:26:07] WARNING[1684] channel.c: Fixup failed on channel
Local/1127-0004132c4403-1 at DialLine-3d9b;1<MASQ>, strange things may
happen.
[Oct 12 11:26:07] WARNING[1684] channel.c: Hangup failed!  Strange things
may happen!
[Oct 12 11:26:07] WARNING[1684] channel.c: Failed to perform masquerade
[Oct 12 11:26:07] WARNING[1684] channel.c: Channel
'Local/1127-0004132c4403-1 at DialLine-3d9b;1' may not have been hung up
properly

The bug happens several times a day.
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Relationships       ID      Summary
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related to          0015349 Deadlock in do_monitor() of chan_sip
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---------------------------------------------------------------------- 
 (0126978) davidw (reporter) - 2010-09-15 05:17
 https://issues.asterisk.org/view.php?id=16057#c126978 
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This patch is logically the same as
https://issues.asterisk.org/view.php?id=17363, except that it includes the
fourth variation.  I called mine minimal, because I had excluded that
variation, not because I didn't suspect it needed to be covered, but
because I wanted to do the minimum change to actually cover the case that
we observed. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-09-15 05:17 davidw         Note Added: 0126978                          
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