kern/143474: [ipfw] ipfw table contains the same address

[Sergey K]

>Number:         143474
>Category:       kern
>Synopsis:       [ipfw] ipfw table contains the same address
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Feb 02 10:40:01 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Sergey K
>Release:        7.2-PRERELEASE
>Organization:
ISP
>Environment:
FreeBSD nas1 7.2-PRERELEASE FreeBSD 7.2-PRERELEASE #1: Thu Apr 16 20:58:15 MSD 2009     
root at nas1:/usr/src/sys/i386/compile/gwe1-0704  i386
>Description:
[root@]# ipfw table 5 list| uniq -d
10.0.66.73/32 0
[root@]# ipfw table 5 list | grep 10.0.66.73/32
10.0.66.73/32 0
10.0.66.73/32 0
[root@]# ipfw table 5 delete 10.0.66.73/32
[root@]# ipfw table 5 list | grep 10.0.66.73/32
10.0.66.73/32 0
[root@]# ipfw table 5 delete 10.0.66.73/32
ipfw: setsockopt(IP_FW_TABLE_DEL): No such process
[root@]# ipfw table 5 list | wc -l  
   4627
[root@]# ipfw table 5 flush
[root@]# ipfw table 5 list

>How-To-Repeat:
The problem is quite random and happens on various machines under heavy
load of traffic (400+ mbps) with frequent changes ipfw tables.
>Fix:


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