[asterisk-bugs] [Asterisk 0018781]: [patch] segfault caused by remote_bridge_loop after a SIP to SIP attended transfer with an IAX2 call

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18781 
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Reported By:                alecdavis
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18781
Category:                   Core/RTP
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           1.8.2.3 
JIRA:                       SWP-3081 
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:             2011-02-09 19:18 CST
Last Modified:              2011-02-24 16:21 CST
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Summary:                    [patch] segfault caused by remote_bridge_loop after
a SIP to SIP attended transfer with an IAX2 call
Description: 
Bug reported on 1.8.2 tag release, after experiencing similar on 1.8.2.3
tagged release.

core dump attached for 1.8.2


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 (0132389) ZX81 (reporter) - 2011-02-24 16:21
 https://issues.asterisk.org/view.php?id=18781#c132389 
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Just had the following before a crash:

[Feb 25 11:09:40]     -- Remotely bridging SIP/716-0000007b and
SIP/707-0000007c
[Feb 25 11:09:40] WARNING[29487]: rtp_engine.c:1022 remote_bridge_loop:
Channels c0->'SIP/716-0000007b' c1->'SIP/707-0000007c' in
remote_bridge_loop
[Feb 25 11:09:44]   == Manager 'andrew' logged on from 10.1.1.45
[Feb 25 11:09:47]     -- Stopped music on hold on lcr/35
[Feb 25 11:09:47] WARNING[29487]: rtp_engine.c:1030 remote_bridge_loop:
Oooh, something is weird, backing out
[Feb 25 11:09:47] ERROR[29487]: astobj2.c:116 INTERNAL_OBJ: bad magic
number 0xa01 for 0x18a1818
[Feb 25 11:09:47] ERROR[29487]: astobj2.c:116 INTERNAL_OBJ: bad magic
number 0xa01 for 0x18a1818
[Feb 25 11:09:47] ERROR[29487]: astobj2.c:116 INTERNAL_OBJ: bad magic
number 0xa01 for 0x18a1818
[Feb 25 11:09:47] ERROR[29487]: astobj2.c:116 INTERNAL_OBJ: bad magic
number 0xa01 for 0x18a1818
[Feb 25 11:09:47]   == Spawn extension (custom-day, s, 1) exited non-zero
on 'SIP/716-0000007b<ZOMBIE>'
[Feb 25 11:09:47]   == Extension Changed 716[extensions] new state Idle
for Notify User 700 
lucas*CLI> 
Disconnected from Asterisk server
[Feb 25 11:09:48] Executing last minute cleanups
Asterisk ending (0). 

Issue History 
Date Modified    Username       Field                    Change               
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2011-02-24 16:21 ZX81           Note Added: 0132389                          
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