kern/156634: kernel: Fatal trap 12: page fault while in kernel mode ppp OS DOWN!!

[TK]

>Number:         156634
>Category:       kern
>Synopsis:       kernel: Fatal trap 12: page fault while in kernel mode ppp OS DOWN!!
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Apr 25 04:10:15 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     TK
>Release:        FreeBSD8.1 i386 32bit
>Organization:
SI
>Environment:
# uname -a
FreeBSD ????????? 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Fri Oct 1 12:33:55 JST 2010 root@?????????:/usr/src/sys/i386/compile/????????? i386
>Description:
---
kernel: Fatal trap 12: page fault while in kernel mode
kernel: cpuid = 1; apic id = 01
kernel: fault virtual address = 0x1a4
kernel: fault code = supervisor read, page not present
kernel: instruction pointer = 0x20:0xc08341ae
kernel: stack pointer = 0x28:0xe7d80a08
kernel:
kernel: frame pointer = 0x28:0xe7d80a2c
---

fix Action It helps. 
>How-To-Repeat:
no
>Fix:
no

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