[asterisk-bugs] [Asterisk 0015490]: [patch] mISDN rejects incoming calls (reopened)

Thu Oct 1 20:38:27 CDT 2009

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15490 
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Reported By:                slutec18
Assigned To:                rmudgett
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Project:                    Asterisk
Issue ID:                   15490
Category:                   Channels/chan_misdn
Reproducibility:            sometimes
Severity:                   major
Priority:                   normal
Status:                     closed
Asterisk Version:           1.4.25.1 
JIRA:                        
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
Resolution:                 fixed
Fixed in Version:           
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Date Submitted:             2009-07-13 04:04 CDT
Last Modified:              2009-10-01 20:38 CDT
====================================================================== 
Summary:                    [patch] mISDN rejects incoming calls (reopened)
Description: 
have a trixbox installation with a b800p with 6 ISDN lines configured in
PTP mode. The asterisk version is 1.4.25.1 and misdn 1.1.7
The system works well but I Sometimes, usually twice a week the system
gives me a dial out failure. That happens usually when pbx is under heavy
load
In this circumsance I can receive calls as before but I cannot perform
outbound calls.
The only solution is to reach the ssh console  in the system and give an
"mISDN restart", after that the system returns to normal operation and i
can perform outbound calls  again. 

The misdn log file reports a problem related to issue 
[asterisk-bugs] [Asterisk 0013488]: mISDN rejects incoming calls

but the asterisk changelog states that bug 13488 was fixed in 1.4.25.1
version

Fri Jul 10 17:09:25 2009: P[ 1]  **** Received CAUSE:44, so not cleaning
up channel 1
Fri Jul 10 17:09:25 2009: P[ 1]  **** This channel is now no longer
available,
please try to restart it with 'misdn send restart <port> <channel>'
Fri Jul 10 17:09:25 2009: P[ 1]  Sending Restarts on this port.
Fri Jul 10 17:09:25 2009: P[ 1]  Restarting and cleaning channel 1
Fri Jul 10 17:09:25 2009: P[ 1]  Restarting channel 1
Fri Jul 10 17:09:33 2009: P[ 1]  Requested Channel Already in Use
releasing this call with cause 34!!!!
Fri Jul 10 17:09:33 2009: P[ 1]  couldn't handle event
Fri Jul 10 17:09:33 2009: P[ 1]  CC_RELEASE_COMPLETE|CONFIRM [TE]
Fri Jul 10 17:09:46 2009: P[ 1]  Requested Channel Already in Use
releasing this call with cause 34!!!!
Fri Jul 10 17:09:46 2009: P[ 1]  couldn't handle event
Fri Jul 10 17:09:46 2009: P[ 1]  CC_RELEASE_COMPLETE|CONFIRM [TE]
Fri Jul 10 17:09:57 2009: P[ 1]  Requested Channel Already in Use
releasing this call with cause 34!!!!
Fri Jul 10 17:09:57 2009: P[ 1]  couldn't handle event
Fri Jul 10 17:09:57 2009: P[ 1]  CC_RELEASE_COMPLETE|CONFIRM [TE]
Fri Jul 10 17:10:43 2009: P[ 1]  Requested Channel Already in Use
releasing this call with cause 34!!!!
Fri Jul 10 17:10:43 2009: P[ 1]  couldn't handle event
Fri Jul 10 17:10:43 2009: P[ 1]  CC_RELEASE_COMPLETE|CONFIRM [TE]
Fri Jul 10 17:11:17 2009: P[ 1]  Requested Channel Already in Use
releasing this call with cause 34!!!!
Fri Jul 10 17:11:17 2009: P[ 1]  couldn't handle event
Fri Jul 10 17:11:17 2009: P[ 1]  CC_RELEASE_COMPLETE|CONFIRM [TE]
Fri Jul 10 17:12:59 2009: P[ 1]  Requested Channel Already in Use
releasing this call with cause 34!!!!
Fri Jul 10 17:12:59 2009: P[ 1]  couldn't handle event
Fri Jul 10 17:12:59 2009: P[ 1]  CC_RELEASE_COMPLETE|CONFIRM [TE]
Fri Jul 10 17:14:01 2009: P[ 1]  Requested Channel Already in Use
releasing this call with cause 34!!!!
Fri Jul 10 17:14:01 2009: P[ 1]  couldn't handle event
Fri Jul 10 17:14:01 2009: P[ 1]  CC_RELEASE_COMPLETE|CONFIRM [TE]
Fri Jul 10 17:14:29 2009: P[ 1]  Requested Channel Already in Use
releasing this call with cause 34!!!!
Fri Jul 10 17:14:29 2009: P[ 1]  couldn't handle event
Fri Jul 10 17:14:29 2009: P[ 1]  CC_RELEASE_COMPLETE|CONFIRM [TE]
Fri Jul 10 17:18:17 2009: P[ 0]  -- mISDN Channel Driver Registered --

I also checked the .c file to see if the patch reported in 13488 is
included. 
As expected I found the code regarding the patch.

Regards

======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
duplicate of        0013488 [patch] mISDN rejects incoming calls
related to          0015458 [patch] mISDN rejects calls - NO FREE C...
====================================================================== 

---------------------------------------------------------------------- 
 (0111777) svnbot (reporter) - 2009-10-01 20:38
 https://issues.asterisk.org/view.php?id=15490#c111777 
---------------------------------------------------------------------- 
Repository: asterisk
Revision: 221879

_U  branches/1.6.2/
U   branches/1.6.2/channels/misdn/isdn_lib.c
U   branches/1.6.2/channels/misdn/isdn_lib_intern.h

------------------------------------------------------------------------
r221879 | rmudgett | 2009-10-01 20:38:26 -0500 (Thu, 01 Oct 2009) | 40
lines

Merged revisions 221844 via svnmerge from 
https://origsvn.digium.com/svn/asterisk/trunk

................
  r221844 | rmudgett | 2009-10-01 20:09:31 -0500 (Thu, 01 Oct 2009) | 33
lines

  Merged revisions 221769 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.4

  ........
    r221769 | rmudgett | 2009-10-01 18:18:28 -0500 (Thu, 01 Oct 2009) | 26
lines

    Occasionally losing use of B channels in chan_misdn.

    I have not been able to reproduce the problem of losing channels.
    However, I have seen in the code a reentrancy problem that might give
    these symptoms.

    The reentrancy patch does several things:
    1) Guards B channel and B channel structure allocation.
    2) Makes the B channel structure find routines more precise in
locating records.
    3) Never leave a B channel allocated if we received cause 44.

    The last item may cause temporary outgoing call problems, but they
should
    clear when the line becomes idle.

    (closes issue https://issues.asterisk.org/view.php?id=15490)
    Reported by: slutec18
    Patches:
          issue15490_channel_alloc_reentrancy.patch uploaded by rmudgett
(license 664)
    Tested by: rmudgett, slutec18

    (closes issue https://issues.asterisk.org/view.php?id=15458)
    Reported by: FabienToune
    Patches:
          issue15458_channel_alloc_reentrancy.patch uploaded by rmudgett
(license 664)
    Tested by: FabienToune, rmudgett, slutec18
  ........
................

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http://svn.digium.com/view/asterisk?view=rev&revision=221879 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-10-01 20:38 svnbot         Checkin                                      
2009-10-01 20:38 svnbot         Note Added: 0111777                          
======================================================================