[asterisk-bugs] [DAHDI-linux 0013504]: Reference counts on dahdi_echocan_mg2 can be corrupted and prevent unloading dahdi

Wed Sep 17 10:16:21 CDT 2008

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=13504 
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Reported By:                sruffell
Assigned To:                
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Project:                    DAHDI-linux
Issue ID:                   13504
Category:                   dahdi (the module)
Reproducibility:            always
Severity:                   crash
Priority:                   low
Status:                     new
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Date Submitted:             2008-09-17 10:09 CDT
Last Modified:              2008-09-17 10:16 CDT
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Summary:                    Reference counts on dahdi_echocan_mg2 can be
corrupted and prevent unloading dahdi
Description: 
The reference count on the dahdi_echocan_mg2 appears to go negative
sometimes when chan_dahdi.so fails to load which can then prevent reloading
the DAHDI modules until system restart.
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---------------------------------------------------------------------- 
 (0092623) svnbot (reporter) - 2008-09-17 10:16
 http://bugs.digium.com/view.php?id=13504#c92623 
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Repository: dahdi
Revision: 4917

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

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r4917 | sruffell | 2008-09-17 10:16:19 -0500 (Wed, 17 Sep 2008) | 9 lines

Turn off reference counting on the echo canceller modules in order to
prevent
misconfigurations from preventing the drivers from unloading.  

NOTE: This is only a temporary workaround, since it also means that the
echocanceller can be unloaded by an administrator while in use, which
would
most likely result in a kernel oops.

Related to issue http://bugs.digium.com/view.php?id=13504.

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http://svn.digium.com/view/dahdi?view=rev&revision=4917 

Issue History 
Date Modified    Username       Field                    Change               
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2008-09-17 10:16 svnbot         Note Added: 0092623                          
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