kern/122880: Kernel lock-up during 7.0 installation disc boot up on motherboard w/ AMD 780G chipset

[Hoon Choi]

>Number:         122880
>Category:       kern
>Synopsis:       Kernel lock-up during 7.0 installation disc boot up on motherboard w/ AMD 780G chipset
>Confidential:   no
>Severity:       critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Apr 18 05:20:00 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Hoon Choi
>Release:        7.0-RELEASE
>Organization:
>Environment:
Unable to get to the command prompt. Kernel locks up during the initial stage of boot. The motherboard is ASUS M3A78-EMH HDMI w/ AMD 780G chipset, and the CPU is AMD Athlon 64 X2 4200+.
>Description:
The machine locks up with the following message displayed on the monitor during the initial boot.

usb0: OHCI version 1.8, legacy support
usb0: SMM does not respond, resetting
usb0: <OHCI (generic) USB controller> on ohciO usb0: USB revision 1.0
uhub0: <ATI OHCI root hub. class 9/0, rev 1.00/1.00, addr 1> on usb0
uhub0: 3 ports with 3 removable, self powered
ohci1: <OHCI (generic) USB controller> mem 0xfbcfd000 0xfbcfdfff irq 16 at devic
e 18.1 on pci0
ohci1: Reserved 0x1000 bytes for rid 0x10 type 3 at 0xfbcfd000
ohci1: [GIANT-LOCKED]
ohci1: [ITHREAD]
usb1: OHCI version 1.0, legacy support
usb1: SMM does not respond, resetting
usb1: <OHCI (generic) USB controller> on ohci1
usb1: USB revision 1.0
uhub1: <ATI OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
uhub1: 3 ports with 3 removable, self powered
ehciO: <EHCI (generic) USB 2.0 controller> mem 0xfbcff000-0xfbcff0ff irq 17 at d
evice 18.2 on pci0
ehciO: Reserved 0x100 bytes for rid 0x10 type 3 at 0xfbcff000
ioapic0: routing intpin 17 (PCI IRQ 17) to vector 51
ehciO: [GIANT-LOCKED]
ehciO: [ITHREAD]
ehci0: Dropped interrupts workaround enabled


Tried all available options on the boot loader, but in all cases kernel locked up at the same place.
>How-To-Repeat:
1. Put in the 7.0-RELEASE amd64 installation disc 1.
2. Select any option when prompted by the boot loader.

Similar lock-ups occur with i386 installation disc also.
>Fix:


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