[asterisk-bugs] [Zaptel 0010593]: Zaptel crashes kernel - zt_init_tone_state

[noreply at bugs.digium.com]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=10593 
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Reported By:                jmhunter
Assigned To:                tzafrir
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Project:                    Zaptel
Issue ID:                   10593
Category:                   zaptel (the module)
Reproducibility:            sometimes
Severity:                   crash
Priority:                   normal
Status:                     closed
Zaptel Version:             1.4.5.1  
SVN Branch (only for SVN checkouts, not tarball releases): N/A  
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
Resolution:                 fixed
Fixed in Version:           
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Date Submitted:             08-29-2007 13:02 CDT
Last Modified:              06-07-2008 13:46 CDT
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Summary:                    Zaptel crashes kernel - zt_init_tone_state
Description: 
When zaptel is compiled and installed on my system, any use of my TDM400P
card will eventually lead to a kernel crash - see attached trace.

The problem is reproducible by simply picking up a Zap channel handset. It
won't always crash straight away, though. Sometimes it takes longer to
crash, sometimes it's quicker - and I also get some really strange
"dialtones" varying from complete silence, through loud single tones, right
up to weird multiple tones similar to a fax or modem.

I don't believe this to be a hardware issue, as this system has been rock
solid under an older version of zaptel. The older zaptel versions no longer
compile cleanly under current kernels, however, so it's time for me to bite
the bullet and try to track down the cause of the crash.

Any suggestions gratefully received - where do I start?!
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Relationships       ID      Summary
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related to          0011661 ztcfg default behavior  + races in zapt...
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---------------------------------------------------------------------- 
 svnbot - 06-07-08 13:46  
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Repository: dahdi
Revision: 3677

U   branches/1.4/zaptel-base.c

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r3677 | tzafrir | 2008-06-07 13:46:56 -0500 (Sat, 07 Jun 2008) | 4 lines

Don't free a tone zone that was not created. (So why does tonezone.c do
that?)
Closes issue http://bugs.digium.com/view.php?id=10593 . Sorry for the noise.

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http://svn.digium.com/view/dahdi?view=rev&revision=3677 

Issue History 
Date Modified   Username       Field                    Change               
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06-07-08 13:46  svnbot         Checkin                                      
06-07-08 13:46  svnbot         Note Added: 0088359                          
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