[asterisk-bugs] [Zaptel 0012263]: DTMF tones in crossover cable loopback environment cause kernel dump

[noreply at bugs.digium.com]

The following issue has been RESOLVED. 
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http://bugs.digium.com/view.php?id=12263 
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Reported By:                craig
Assigned To:                file
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Project:                    Zaptel
Issue ID:                   12263
Category:                   zaptel (the module)
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     resolved
Zaptel Version:             1.4.9.2 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
Resolution:                 no change required
Fixed in Version:           
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Date Submitted:             03-20-2008 02:25 CDT
Last Modified:              03-20-2008 08:29 CDT
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Summary:                    DTMF tones in crossover cable loopback environment
cause kernel dump
Description: 
TE405 or TE410 with E1 spans 1 and 2 cross connected via ISDN crossover
cable.  Asterisk 1.4.18, Zaptel 1.4.9.2, libpri 1.4.3.  OS Centos 5 with
default kernel 2.6.18-53.el5.  Span 1 configured as pri_net, span 2 as
pri_cpe.

Call originates from SIP handset attached to server, call dials out span 1
and comes back via span 2 into an IVR.  The pressing of a keypad button
(DTMF) causes immediate kernel dump.  The generation of DTMF can occur at
any time (whilst the call is still Ringing, during Wait, or after
answering).  Taking the spans out of the call path removes the problem.

Kernel dump mentions 'zt_chan_read ... [zaptel]'  Server must be power
cycled to recover.
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Relationships       ID      Summary
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duplicate of        0012053 Zaptel crashes kernel - zt_init_tone_state
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 file - 03-20-08 08:29  
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Closed as already fixed per other report. Will be in next release. 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
03-20-08 08:29  file           Resolution               open => no change
required
03-20-08 08:29  file           Assigned To               => file            
03-20-08 08:29  file           Note Added: 0084312                          
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