[asterisk-bugs] [Asterisk 0019219]: Memleak with every incoming SUBSCRIBE.

[Asterisk Bug Tracker]

The following issue has been SUBMITTED. 
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https://issues.asterisk.org/view.php?id=19219 
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Reported By:                vrban
Assigned To:                
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Project:                    Asterisk
Issue ID:                   19219
Category:                   Channels/chan_sip/Subscriptions
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.41 
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:             2011-05-03 07:48 CDT
Last Modified:              2011-05-03 07:48 CDT
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Summary:                    Memleak with every incoming SUBSCRIBE.
Description: 

The Contact address of every incoming SUBSCRIBE is stored im memory.
It happen in when calling "parse_ok_contact" in
"handle_request_subscribe"

I simply removed the call to parse_ok_contact, because i dont need the 
contact header in the URI in NOTIFY's because i have a opensips between
the phones and asterisk. that's a working workaround for me.

To reproduce this issue, do the following:

Run the attached perl script, that fire out 1000 SUBSCRIBE's
(make sure you have a hint for that extension, and answer to the
SUBSCRIBE's is a 200 OK)
Then let asterisk do a coredump with kill -6 <asterisk_pid>
Then search for the string "memleak" which is part of the contact
address in the 1000 SUBSCRIBE's.

strings <coredumpfile> |grep memleak

the you will see 1000 lines with the same contact address.

So when you have 1000 phones, and every phone has some activ
SUBSCRIBE, then after a week asterisk use 200MB memory just
to store millons lines of contact addresses. 

I work with 1.4 but probably this issue is in all other asterisk versions
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Issue History 
Date Modified    Username       Field                    Change               
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2011-05-03 07:48 vrban          New Issue                                    
2011-05-03 07:48 vrban          Asterisk Version          => 1.4.41          
2011-05-03 07:48 vrban          Regression                => No              
2011-05-03 07:48 vrban          SVN Branch (only for SVN checkouts, not tarball
releases) => N/A             
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