[asterisk-bugs] [Asterisk 0017261]: 1.4.31rc1 Deadlock: Tried and failed to get Lock #1 (chan_dahdi.c): MUTEX 1063 pri_grab &pri->lock 0xe09684

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17261 
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Reported By:                aragon
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17261
Category:                   Channels/chan_dahdi
Reproducibility:            have not tried
Severity:                   major
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           1.4.31-rc1 
JIRA:                       SWP-1464 
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:             2010-04-29 08:53 CDT
Last Modified:              2010-06-18 13:33 CDT
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Summary:                    1.4.31rc1 Deadlock: Tried and failed to get Lock
https://issues.asterisk.org/view.php?id=1 (chan_dahdi.c): MUTEX 1063 pri_grab
&pri->lock 0xe09684
Description: 
*1.4.31rc1 SVN (sorry, not sure which SVN version) deadlocks.
This has happened only once under moderate call volume but I am reporting
this issue regardless.
CentOS5.4 Xeon 2.4GHz
1GB RAM

deadlock.txt info attached includes core show locks
gdb thread apply all bt
Not optimized

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 (0123611) svnbot (reporter) - 2010-06-18 13:33
 https://issues.asterisk.org/view.php?id=17261#c123611 
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Repository: asterisk
Revision: 271335

U   branches/1.4/channels/chan_dahdi.c

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r271335 | jpeeler | 2010-06-18 13:33:17 -0500 (Fri, 18 Jun 2010) | 13
lines

Eliminate deadlock potential in dahdi_fixup().

(This is a backport of 269307, committed to trunk by rmudgett.)

Calling dahdi_indicate() when the channel private lock is already
held can cause a deadlock if the PRI lock is needed because
dahdi_indicate() will also get the channel private lock.  The pri_grab()
function assumes that the channel private lock is held once to avoid
deadlock.

(closes issue https://issues.asterisk.org/view.php?id=17261)
Reported by: aragon

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http://svn.digium.com/view/asterisk?view=rev&revision=271335 

Issue History 
Date Modified    Username       Field                    Change               
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2010-06-18 13:33 svnbot         Checkin                                      
2010-06-18 13:33 svnbot         Note Added: 0123611                          
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