[asterisk-bugs] [Asterisk 0016847]: [patch] Deadlock between dahdi_exception and dahdi_indicate

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16847 
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Reported By:                shin-shoryuken
Assigned To:                rmudgett
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Project:                    Asterisk
Issue ID:                   16847
Category:                   Channels/chan_dahdi
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
Target Version:             1.6.2.15
Asterisk Version:           SVN 
JIRA:                       SWP-927 
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:             2010-02-16 15:16 CST
Last Modified:              2010-10-11 14:30 CDT
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Summary:                    [patch] Deadlock between dahdi_exception and
dahdi_indicate
Description: 
I've encountered a deadlock situation between dahdi_exception and
dahdi_indicate, running Asterisk 1.6.1.6 (confirmed as well in 1.6.1.14) on
Debian Lenny x86_64.  Deadlock occurs roughly once a week, usually under
lower call volume (strangely enough).  The issue seems to arise mostly when
swapping between call-waiting lines on a DAHDI channel.
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 (0127844) rmudgett (administrator) - 2010-10-11 14:30
 https://issues.asterisk.org/view.php?id=16847#c127844 
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I have not been able to reproduce the deadlock.  However, I can see it in
the code.  The issue_16847_v1.8.patch should fix the deadlock for Asterisk
v1.8.  I am working on backporting this patch to the earlier supported
Asterisk version. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-10-11 14:30 rmudgett       Note Added: 0127844                          
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