[asterisk-bugs] [Asterisk 0016754]: [patch] Multiple segfaults in leave_voicemail at app_voicemail.c:4451 Asterisk 1.4.29

[Asterisk Bug Tracker]

The following issue has been set as RELATED TO issue 0016271. 
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https://issues.asterisk.org/view.php?id=16754 
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Reported By:                aragon
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16754
Category:                   Applications/app_voicemail
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     ready for testing
Asterisk Version:           1.4.29 
JIRA:                       SWP-844 
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:             2010-02-02 13:08 CST
Last Modified:              2010-02-23 15:00 CST
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Summary:                    [patch] Multiple segfaults in leave_voicemail at
app_voicemail.c:4451 Asterisk 1.4.29
Description: 
Asterisk 1.4.27 was locking at leave_voicemail and after upgrading to
1.4.29 in a desperate attempt to clear the locking Asterisk 1.4.29 started
segfaulting every 2 or 3 minutes.  I had to downgrade to 1.4.27 to prevent
the segfaults.
Here is the evidence of the lock in the ast CLI
app.c: Failed to lock path
'/var/spool/asterisk/voicemail/customer/3329/INBOX': File exists.
The permissions on this folder look normal.
Under 1.4.27 core show locks was useless, core show channels was useless.
When voicemail directories start locking htop showed CPU utilization at
300 where normal load is about 1 on 1.4.27

Attaching Asterisk CLI history.
Ran 1.4.29 under Valgrind for a few minutes until it crashed so I could
upload valgrind capture.
Uploading gdb file with bt, bt full, thread apply all bt full
I believe that while Asterisk was locked on mailbox leaving a message in
mailbox 3329 caused the segfault.  Other mailboxes display similar locking
symptoms in Asterisk CLI.


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Relationships       ID      Summary
----------------------------------------------------------------------
related to          0016271 [patch] message limit (maxmsg) can be e...
has duplicate       0016813 Failure of canary
has duplicate       0016854 [regression] Crash in app_voicemail.c i...
related to          0016811 Heavy locking in manager.c results in e...
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Issue History 
Date Modified    Username       Field                    Change               
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2010-02-23 15:00 tilghman       Relationship added       related to 0016271  
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