ports/93299: unload of zaptel kernel modules causes a Fatal Trap 12

[Jose M. Fandiño]

>Number:         93299
>Category:       ports
>Synopsis:       unload of zaptel kernel modules causes a Fatal Trap 12
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Feb 13 17:00:22 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Jose M. Fandiño
>Release:        6.0-RELEASE and 6.1-PRERELEASE
>Organization:
Particular
>Environment:
FreeBSD host.domain 6.1-PRERELEASE FreeBSD 6.1-PRERELEASE #0: Sat Feb 11 20:24:25 CET 2006 	root at host.domain::/usr/obj/usr/src/sys/GENERIC	i386
>Description:
Hello,

       This bug  was originally reported as ports/87631

Asterisk needs load zaptel.ko and ztdummy.ko,  if you try unload this drivers freebsd will panic with a
Fatal Trap 12 message.
>How-To-Repeat:
 install zaptel from the ports and run this commands:

kldload /usr/local/lib/zaptel/zaptel.ko
kldload /usr/local/lib/zaptel/ztdummy.ko

now unload them:
kldload /usr/local/lib/zaptel/ztdummy.ko
kldload /usr/local/lib/zaptel/zaptel.ko (be prepared for a PANIC)
>Fix:
              
>Release-Note:
>Audit-Trail:
>Unformatted: