[asterisk-bugs] [Asterisk 0017187]: crash when calling ao2_unlock inside pthread_timer_disable_continuous - NOT FIXED PLEASE RE-OPEN

[Asterisk Bug Tracker]

The following issue requires your FEEDBACK. 
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https://issues.asterisk.org/view.php?id=17187 
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Reported By:                Eddie Edwards
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17187
Category:                   Resources/res_timing_pthread
Reproducibility:            random
Severity:                   crash
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.6.1.18 
JIRA:                       SWP-1297 
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:             2010-04-15 08:06 CDT
Last Modified:              2010-04-15 11:22 CDT
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Summary:                    crash when calling ao2_unlock inside
pthread_timer_disable_continuous - NOT FIXED PLEASE RE-OPEN
Description: 
See https://issues.asterisk.org/view.php?id=15915.  We are also experiencing
this issue.  Asterisk 1.6.1.6.

Bug has been closed because Digium thinks it is a compiler bug.  Quote
tilghman:

"As it turns out, the "@plt" is a dead giveaway as to the source of this
problem. This is a problem in the compiler/linker tools for your platform.
Please report this issue upstream to the package maintainers of your
distribution environment. This is NOT a bug in Asterisk, but a compiler (or
linker) bug."

This is clearly not the case.  By the time the bug is hit (at load of
around 200 calls) ao2_unlock has already been called thousands if not
millions of times.  The dynamic linker is not entered subsequently.  There
is no evidence of a linker problem.

In all likelihood, Asterisk is trashing the PLT itself via a bad pointer.

Please re-open https://issues.asterisk.org/view.php?id=15915 and fix.
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Relationships       ID      Summary
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has duplicate       0015915 crash when calling ao2_unlock inside pt...
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 (0120475) tilghman (administrator) - 2010-04-15 11:22
 https://issues.asterisk.org/view.php?id=17187#c120475 
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You'll need to replicate this under valgrind for us to take this any
further.  Please see doc/valgrind.txt. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-04-15 11:22 tilghman       Note Added: 0120475                          
2010-04-15 11:22 tilghman       Status                   acknowledged =>
feedback
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