kern/166806: Inability to reboot system

[RX]

>Number:         166806
>Category:       kern
>Synopsis:       Inability to reboot system
>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:   Mon Apr 09 23:10:15 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     RX
>Release:        9.0-RELEASE
>Organization:
>Environment:
FreeBSD Dell-R815 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue Jan  3 07:46:30 UTC 2012     root at farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64
>Description:
Cannot reboot the system.  Last message seen on the console is "Uptime: 1d2h33m".  At this time the keyboard is unresponsive and a physical power cycle is needed to complete the reboot.

Hardware is:

Dell R815, Four AMD 12 Core CPUs, 64GB RAM.


>How-To-Repeat:
Use Dell r815.

>Fix:


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