kern/86525: FreeBSD 6.0BETA5 hangs after boot up system

[datastream]

>Number:         86525
>Category:       kern
>Synopsis:       FreeBSD 6.0BETA5 hangs after boot up system
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Sep 24 10:30:19 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     datastream
>Release:        FreeBSD 6.0BETA5
>Organization:
freecity
>Environment:
FreeBSD FreeBSD 6.0-BETA5 FreeBSD 6.0-BETA5 #0: Sat Sep 15 16:03:32 CST 2005 root at FreeBSD:/usr/obj/usr/src/sys/PF i386
>Description:
System hangs after boot up system. Sometimes it hangs when start ssh,sometimes it was in runing fsck,etc.But it all happens in 5mins.
No msg can find.
>How-To-Repeat:
Install FreeBSD 6.0BETA4 then just boot up system.or updata system to be 6.0BETA5.It happens boths in singal mode and user mode     
>Fix:
Unknow.Wait 6.0release version. or use 5.4 release.    
>Release-Note:
>Audit-Trail:
>Unformatted: