[asterisk-bugs] [Zaptel 0012387]: Cannot unload wct4xxp zaptel kernel module

[noreply at bugs.digium.com]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=12387 
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Reported By:                Skarmeth
Assigned To:                sruffell
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Project:                    Zaptel
Issue ID:                   12387
Category:                   wct4xxp
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     assigned
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:              
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Date Submitted:             04-08-2008 14:27 CDT
Last Modified:              04-11-2008 12:29 CDT
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Summary:                    Cannot unload wct4xxp zaptel kernel module
Description: 
I cannot unload a unused wct4xxp zaptel kernel module. Every time I try to
remove it I get a kernel oops/crash.

1. boot-up the system
2. load zaptel module (modprobe zaptel)
3. load wct4xxp module (modprobe wct4xxp)
4. unload wct4xxp module (rmmod wct4xxp) <<--- it says that it's in use
and crash!
5. unload zaptel module (rmmod zaptel)   <<--- I can't get here since 4
failed
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---------------------------------------------------------------------- 
 Skarmeth - 04-11-08 12:29  
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Hi sruffell,

I made a 4k stack kernel and the problem persist,,,

$ uname -r
2.6.24.4-64.mantis_bug_0012387.fc8

$ cat /sys/module/zaptel/version 
SVN-mattf-zaptel-1.4-stackcleanup-r4151

Please check the attached file (wct4xxp-crash-unload-4k-stack) and I also
put my kernel config file for debugging purpouse. 

Issue History 
Date Modified   Username       Field                    Change               
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04-11-08 12:29  Skarmeth       Note Added: 0085360                          
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