i386/102343: ACPI error

[eazam]

>Number:         102343
>Category:       i386
>Synopsis:       ACPI error
>Confidential:   no
>Severity:       non-critical
>Priority:       high
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Aug 21 12:50:14 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     eazam
>Release:        6.1-stable
>Organization:
>Environment:
FreeBSD gun-grave-mafia.mybsd.org.my 6.1-STABLE FreeBSD 6.1-STABLE #0: Thu Aug 17 00:39:14FreeBSD gun-grave-mafia.mybsd.org.my 6.1-STABLE FreeBSD 6.1-STABLE #0: Thu Aug 17 00:39:14 MYT 2006     root at gun-grave-mafia.mybsd.org.my:/usr/obj/usr/src/sys/GUNGRAVE  i386
 MYT 2006     root at gun-grave-mafia.mybsd.org.my:/usr/obj/usr/src/sys/GUNGRAVE  i386

>Description:
when power off main supply 
this error appear in dmesg output

acpi: bad read from port 0x080 (16)
acpi: bad write to port 0x080 (16), val 0xc3250031
acpi: bad read from port 0x080 (16)
acpi: bad write to port 0x080 (16), val 0xc3250031

using dell inspiron 700m notebook.

>How-To-Repeat:
 on and off power supply
>Fix:

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