kern/156716: System freeze during reboot

[Szalai András]

>Number:         156716
>Category:       kern
>Synopsis:       System freeze during reboot
>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 Apr 29 12:40:08 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     Szalai András
>Release:        FreeBSD 8.2-RELEASE-p1 amd64
>Organization:
none
>Environment:
System: FreeBSD tristania.kispest.home 8.2-RELEASE-p1 FreeBSD 8.2-RELEASE-p1 #4: Fri Apr 29 13:53:15 CEST 2011 root at tristania.kispest.home:/disk/wd0.usr/root.usr/src/sys/amd64/compile/TRISTANIA amd64
Motherboard: Gigabyte GA-MA69G-S3H
Processor: AMD Athlon(tm) X2 Dual Core Processor BE-2350

>Description:
When I type "reboot" at the command prompt, the standard shutdown procedure begins
and I can see the following messages on the screen:

Rebooting...
cpu_reset called on cpu#0
cpu_reset: Stopping other CPUs

At this point, the screen goes black, and the machine freezes. The only way to
reboot the system is to press the reset button.

>How-To-Repeat:
Type "reboot".

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