kern/98804: VIA V-RAID metadata mis-read

[Daniel J. O'Connor]

>Number:         98804
>Category:       kern
>Synopsis:       VIA V-RAID metadata mis-read
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Jun 11 12:20:15 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Daniel J. O'Connor
>Release:        FreeBSD 6.1-STABLE i386
>Organization:
>Environment:
System: FreeBSD midget.dons.net.au 6.1-STABLE FreeBSD 6.1-STABLE #1: Sun Jun 11 08:43:05 CST 2006 darius at midget.dons.net.au:/usr/obj/usr/src/sys/MIDGET i386

MSI K8MMV with the K8T800 & VT8237R chipset.

>Description:
I created a RAID1 array with 2 SATA disks in the BIOS and then booted into 
FreeBSD which thought it had a few extra disks (but works fine).

[midget 21:46] ~ >sudo atacontrol status ar0
ar0: ATA RAID1 subdisks: ad0 ad1 DOWN DOWN DOWN DOWN DOWN DOWN status: READY

I did boot verbose earlier and found that the dump of the metadata descriptor
showed non-zero disk IDs in all slots (that wasn't logged but I can reboot if
you need it)

>How-To-Repeat:
>Fix:
Unsure, it IS just cosmetic but it may not be for other RAID types (eg RAID0 or
RAID5).


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