misc/170701: killl ppp or reboot with active ppp connection cause panic when HISADDR set

[joaoBR]

>Number:         170701
>Category:       misc
>Synopsis:       killl ppp or reboot with active ppp connection cause panic when HISADDR set
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Aug 17 11:30:08 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     joaoBR
>Release:        8.3-Stable
>Organization:
>Environment:
FreeBSD wco-mir.expressnet.com.br 8.3-STABLE FreeBSD 8.3-STABLE #0: Fri Jul 20 06:27:13 BRT 2012     hmm at wco-mir.expressnet.com.br:/usr/obj/dados/src/sys/wco8  amd64

>Description:
when 'add default HISADDR' is in ppp.conf the machine panics as soon as ppp is killed 

panic screen here

http://www.matik.com.br/downloads/panic-ppp.png

I have the core dumps if necessary
>How-To-Repeat:

>Fix:
workaround is not setting 'add default HISADDR'

>Release-Note:
>Audit-Trail:
>Unformatted: