i386/84088: Panic with nforce2 platform on FreeBSD 6.0 beta

[Alex]

>Number:         84088
>Category:       i386
>Synopsis:       Panic with nforce2 platform on FreeBSD 6.0 beta
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jul 25 18:50:08 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Alex
>Release:        6.0 beta 1
>Organization:
>Environment:
MSI K7N2 Delta2 Platinum Nforce2 Chipset
Athlon xp 2800+
MSI GEFORCE 6800 GT 
1024 Mo ram PC 2700
Nforce2 Network Card
>Description:
When I download all package with Bootable iso only, or when he installs all the package I have this error which freeze my computer and I hear  a  big "Biiiiiip" from the computer. The error message : 


anic : nve_ifstart :
Attempted use of a free mbuf
cpuid=0
Kdb: enter:panic
[Thread pid 1tid 100006
Stopped at Kdb_enter+0x2b:nop       
>How-To-Repeat:
      
>Fix:
      
>Release-Note:
>Audit-Trail:
>Unformatted: