amd64/144376: continuous reboot on motherboards with ATI SB7xx controller and RAID enabled

Sun Feb 28 22:00:02 UTC 2010

>Number:         144376
>Category:       amd64
>Synopsis:       continuous reboot on motherboards with ATI SB7xx controller and RAID enabled
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Feb 28 22:00:02 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Luigi Italiano
>Release:        8.0-RELEASE; 9.0_CURRENT
>Organization:
>Environment:
>Description:
When try to boot from the DVD, the system stop just after the BTX load and reboot.

This happens to motherboard with AMD/ATI SB700 or SB750 chipset, just when the onboard RAID controller is enabled. IDE and AHCI mode are ok.
The same problem appears with DragonFlyBSD 2.4.1.
FreeBSD/i386, NetBSD and OpenBSD have no problem, as Linux and Windows.

Motherboard tested:
Asus M3A78 Pro; chipset AMD 780GX / ATI SB700
Asus M3A78-T; chipset AMD 790GX / ATI SB750
>How-To-Repeat:
Just try to boot the cd/dvd
>Fix:

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