[asterisk-bugs] [DAHDI-linux 0018463]: Kernel Panic when Hanging up call using FXS connected phone

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18463 
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Reported By:                alecdavis
Assigned To:                
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Project:                    DAHDI-linux
Issue ID:                   18463
Category:                   dahdi (the module)
Reproducibility:            always
Severity:                   crash
Priority:                   high
Status:                     new
JIRA:                       DAHDI-775 
Reviewboard Link:            
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Date Submitted:             2010-12-12 00:10 CST
Last Modified:              2010-12-13 08:57 CST
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Summary:                    Kernel Panic when Hanging up call using FXS
connected phone
Description: 
Since dahdi-linux -r9524 panic occurs, and warning below.

Since dahdi-linux -r9521, the warning below each time we make a call, and
echo is there, very short delay, but is very noticeable.

"[2010-12-12 19:02:15.600188] WARNING[19536]: chan_dahdi.c:4791
dahdi_train_ec: Unable to request echo training on channel 36: Invalid     
          argument

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 (0129576) svnbot (reporter) - 2010-12-13 08:57
 https://issues.asterisk.org/view.php?id=18463#c129576 
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Repository: dahdi
Revision: 9530

U   linux/trunk/drivers/dahdi/dahdi-base.c

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r9530 | sruffell | 2010-12-13 08:57:13 -0600 (Mon, 13 Dec 2010) | 11 lines

dahdi: Do not dereference chan->span for pseudo channels.

Fixes a regression introduced in r9510 which saves a pointer to the ops
member of a channel's span before checking if the channel is a pseudo.
Psuedo channels do not have spans.

(issue https://issues.asterisk.org/view.php?id=18463)
(issue https://issues.asterisk.org/view.php?id=18422)
Reported by: alecdavis

Signed-off-by: Shaun Ruffell <sruffell at digium.com>
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http://svn.digium.com/view/dahdi?view=rev&revision=9530 

Issue History 
Date Modified    Username       Field                    Change               
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2010-12-13 08:57 svnbot         Checkin                                      
2010-12-13 08:57 svnbot         Note Added: 0129576                          
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