[asterisk-bugs] [Asterisk 0016175]: Revision 202007 Introduces Deadlock

[Asterisk Bug Tracker]

The following issue has been ASSIGNED. 
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https://issues.asterisk.org/view.php?id=16175 
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Reported By:                paul-tg
Assigned To:                mnicholson
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Project:                    Asterisk
Issue ID:                   16175
Category:                   Channels/chan_sip/CodecHandling
Reproducibility:            random
Severity:                   major
Priority:                   normal
Status:                     assigned
Asterisk Version:           1.6.2.0-rc3 
JIRA:                       SWP-335 
Regression:                 Yes 
Reviewboard Link:           https://reviewboard.asterisk.org/r/287/ 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!): 202007 
Request Review:              
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Date Submitted:             2009-11-03 19:23 CST
Last Modified:              2009-11-10 09:22 CST
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Summary:                    Revision 202007 Introduces Deadlock
Description: 
After upgrading from 1.6.0-beta9 to 1.6.2-rc2, we are experiencing
deadlocks in try_suggested_sip_codec().  "core show locks" points to code
introduced in revision 202007, which ironically was intended to protect
against deadlocks.  The Asterisk build is completely stock except for a
modified SIP response code in chan_sip.c:handle_request_invite().

We have had two deadlocks so far in as many weeks, both times during
periods of lower than average call load.
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 (0113550) svnbot (reporter) - 2009-11-10 09:22
 https://issues.asterisk.org/view.php?id=16175#c113550 
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Repository: asterisk
Revision: 229088

_U  branches/1.6.2/UPGRADE-1.6.txt
_U  branches/1.6.2/UPGRADE.txt
U   branches/1.6.2/channels/chan_sip.c
_U  branches/1.6.2/main/editline/makelist.in

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r229088 | mnicholson | 2009-11-10 09:22:42 -0600 (Tue, 10 Nov 2009) | 6
lines

Reverted revision 202007.

(closes issue https://issues.asterisk.org/view.php?id=16175)
Reported by: paul-tg
Tested by: paul-tg

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http://svn.digium.com/view/asterisk?view=rev&revision=229088 

Issue History 
Date Modified    Username       Field                    Change               
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2009-11-10 09:22 svnbot         Note Added: 0113550                          
2009-11-10 09:22 svnbot         Status                   feedback => assigned
2009-11-10 09:22 svnbot         Assigned To               => mnicholson      
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