kern/87585: Loss of SATA support w/SIS 180 RAID controller

[Jeffrey Doolittle]

>Number:         87585
>Category:       kern
>Synopsis:       Loss of SATA support w/SIS 180 RAID controller
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Oct 17 20:30:14 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Jeffrey Doolittle
>Release:        6.0-RC1
>Organization:
N/A
>Environment:
FreeBSD mercury.kingsquarry.net 6.0-RC1 FreeBSD 6.0-RC1 #0: Sat Oct 15 13:32:44 EDT 2005     root at mercury.kingsquarry.net:/usr/obj/usr/src/sys/GENERIC  i386

>Description:
         FreeBSD v5.2 - 5.4-STABLE successfully supported the SIS 180 RAID controller (JBOD, RAID-0, & RAID-1).  The current release candidate does recognize the controller but no longer registers the AR0 device.  I replaced the RAID-0 configuration with JBOD to use  gmirror but learned the SATA drives aren't even visable.

I've posted three eMail to CURRENT (two with sos on copy) w/o a response so I've opted to file a bug report.     
>How-To-Repeat:
              Simply install and boot 6.0-RC1 on a ASUS P4R800-V Deluxe motherboard.
>Fix:
              Unknown
>Release-Note:
>Audit-Trail:
>Unformatted: