[asterisk-bugs] [Asterisk 0019304]: [patch] Random entire asterisk deadlock when use builtin_atxfer when use res_timing_timerfd module

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=19304 
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Reported By:                microlana
Assigned To:                
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Project:                    Asterisk
Issue ID:                   19304
Category:                   Resources/res_timing_timerfd
Reproducibility:            sometimes
Severity:                   major
Priority:                   normal
Status:                     ready for testing
Asterisk Version:           1.8.4 
JIRA:                        
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:             2011-05-16 12:55 CDT
Last Modified:              2011-05-26 08:23 CDT
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Summary:                    [patch] Random entire asterisk deadlock when use
builtin_atxfer when use res_timing_timerfd module
Description: 
Random entire asterisk deadlock when use builtin_atxfer when use
res_timing_timerfd module.

In this case impossible to create new channels and/or destruct existing
channels.

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Relationships       ID      Summary
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has duplicate       0018811 [patch] Seems Like ast_read / timerfd_t...
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 (0135434) zvision (reporter) - 2011-05-26 08:23
 https://issues.asterisk.org/view.php?id=19304#c135434 
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I still see a small window in the proposed patch, where the timer can be
disarmed between a call to the timerfd_gettime and the read functions from
another thread, as there is no serialization during timerfd_timer_ack. 

Issue History 
Date Modified    Username       Field                    Change               
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2011-05-26 08:23 zvision        Note Added: 0135434                          
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