Recommended motherboard + cpu combination for AMD Socket AM2+ / Phenom?

[Torfinn Ingolfsen]

On Sun, 23 Dec 2007 05:52:36 +0100
Torfinn Ingolfsen <torfinn.ingolfsen at broadpark.no> wrote:

> FWIW, an Asus M2A-VM HDMI motherboard and an AMD Phenom 9500 seems to
> be a working combination (so far).

Ok, I found a (strange) problem. If I plug in a usb keyboard after the
machine is up and running, it works fine. From /var/log/messages:
Dec 25 21:44:25 kg-vm root: Unknown USB device: vendor 0x046d product 0xc512 bus uhub2
Dec 25 21:44:25 kg-vm kernel: ukbd0: <Logitech USB Receiver, class 0/0, rev 1.10/30.07, addr 2> on uhub2
Dec 25 21:44:25 kg-vm kernel: kbd2 at ukbd0
Dec 25 21:44:25 kg-vm kernel: ums0: <Logitech USB Receiver, class 0/0, rev 1.10/30.07, addr 2> on uhub2
Dec 25 21:44:25 kg-vm kernel: ums0: 16 buttons and Z dir.

And output from 'usbdevs -v':
root at kg-vm# usbdevs -v
Controller /dev/usb0:
addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), ATI(0x0000), rev 1.00
 port 1 powered
 port 2 powered
Controller /dev/usb1:
addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), ATI(0x0000), rev 1.00
 port 1 powered
 port 2 powered
Controller /dev/usb2:
addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), ATI(0x0000), rev 1.00
 port 1 addr 2: low speed, power 98 mA, config 1, USB Receiver(0xc512), Logitech(0x046d), rev 30.07
 port 2 powered
Controller /dev/usb3:
addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), ATI(0x0000), rev 1.00
 port 1 powered
 port 2 powered
Controller /dev/usb4:
addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), ATI(0x0000), rev 1.00
 port 1 powered
 port 2 powered
Controller /dev/usb5:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000), ATI(0x0000), rev 1.00
 port 1 powered
 port 2 powered
 port 3 powered
 port 4 powered
 port 5 powered
 port 6 powered
 port 7 powered
 port 8 powered
 port 9 powered
 port 10 powered

So far everything is good.
However, if a usb keyboard is attached when FreeBSD boots, the machine panics during boot, with some message about ohci.

I have tried with two different usb keyboards (different make and model)  - same problem.
If I try with a usb mouse instead, the machine doesn't panic during boot, it just disablesthe port that the mouse is attached to.

I haven't seen this kind of error before, and doesn't know how to debug this further. any hints welcome.
As always, output and info is at the machine page:
http://tingox.googlepages.com/asus_m2a-vm_hdmi_freebsd
-- 
Regards,
Torfinn Ingolfsen