kern/151813: FreeBSD 8.1/amd64: garbage in /var/log/messages

[Martin Schweizer]

>Number:         151813
>Category:       kern
>Synopsis:       FreeBSD 8.1/amd64: garbage in /var/log/messages
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Oct 29 14:10:08 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Martin Schweizer
>Release:        FreeBSD 8.1-RELEASE #0
>Organization:
PC-Service M. Schweizer GmbH
>Environment:
FreeBSD firewall.xxx.ch 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Thu Oct 21 18:34:20 CEST 2010     martin at firewall.xxx.ch:/usr/obj/usr/src/sys/FREEBSD_AMD64  amd64
>Description:
In /var/log/messages I get since a long time such messages:

Oct 27 05:45:10 firewall kernel:
Oct 27 05:45:10 firewall kernel: u
Oct 27 05:45:10 firewall kernel:
Oct 27 05:45:10 firewall kernel:
Oct 27 05:45:10 firewall kernel: u
Oct 27 05:45:10 firewall kernel: 1
Oct 27 05:45:10 firewall kernel:
Oct 27 05:45:10 firewall kernel:
Oct 27 05:45:10 firewall kernel: i
Oct 27 05:45:10 firewall kernel: .
Oct 27 05:45:10 firewall kernel: :
Oct 27 05:45:10 firewall kernel:
Oct 27 05:45:10 firewall kernel: 4
Oct 27 05:45:10 firewall kernel:
Oct 27 05:45:10 firewall kernel:
Oct 27 05:45:10 firewall kernel: 80
Oct 27 05:45:10 firewall kernel: 0
Oct 27 05:45:10 firewall kernel:
Oct 27 05:45:10 firewall kernel:
Oct 27 05:45:10 firewall kernel: u

It occurs only in conjunction with ipfw. 

Periodically there are some thread about in in freebsd-stable@ like these:

http://docs.freebsd.org/cgi/getmsg.cgi?fetch=119092+0+archive/2010/freebsd-questions/20100919.freebsd-questions
 
>How-To-Repeat:
Use ipfw as firewall.
>Fix:
Do not use ipfw.

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