Description of problem:
Since updating from vmlinuz-2.6.16-1.2096_FC5 (x86_64) kernel to
vmlinuz-2.6.17-1.2139_FC5, the USB keyboard and mouse on my Sun w2100z Dual
Opteron workstation have completely ceased working.  Reverting to the previous
kernel restores all functionality to normal.

Version-Release number of selected component (if applicable):
Kernel: vmlinuz-2.6.17-1.2139_FC5

X.Org X server:
xorg-x11-drv-vesa-1.0.1.3-1.2
xorg-x11-fonts-ISO8859-1-100dpi-7.0-3
xorg-x11-drv-vmware-10.11.1.3-1.1
xorg-x11-drv-dummy-0.1.0.5-1.2
xorg-x11-drv-joystick-1.0.0.5-1.2
xorg-x11-xinit-1.0.1-2
xorg-x11-fonts-ISO8859-1-75dpi-7.0-3
xorg-x11-drv-microtouch-1.0.0.5-1.2
xorg-x11-drv-i810-1.4.1.3-3.1
xorg-x11-drv-jamstudio-1.0.0.5-1.2
xorg-x11-utils-1.0.1-1.2
xorg-x11-drv-siliconmotion-1.3.1.5-1.1
xorg-x11-drv-tdfx-1.1.1.3-1.3
xorg-x11-twm-1.0.1-1.2
xorg-x11-xfs-1.0.1-4
xorg-x11-fonts-Type1-7.0-3
xorg-x11-drv-summa-1.0.0.5-1.2
xorg-x11-drv-voodoo-1.0.0.5-1.2
xorg-x11-drv-palmax-1.0.0.5-1.2
xorg-x11-drv-dynapro-1.0.0.5-1.2
xorg-x11-drv-aiptek-1.0.0.5-1.2
xorg-x11-xauth-1.0.1-1.2
xorg-x11-fonts-base-7.0-3
xorg-x11-fonts-100dpi-7.0-3
xorg-x11-drv-ati-6.5.7.3-4
xorg-x11-drv-spaceorb-1.0.0.5-1.2
xorg-x11-drv-elo2300-1.0.0.5-1.2
xorg-x11-drv-ur98-1.0.0.5-1.2
xorg-x11-drv-vga-4.0.0.5-2
xorg-x11-drv-magictouch-1.0.0.5-1.2
xorg-x11-xkbdata-1.0.1-7
xorg-x11-apps-1.0.1-2
xorg-x11-fonts-75dpi-7.0-3
xorg-x11-drv-savage-2.0.2.3-1.2
xorg-x11-drv-s3-0.3.5.5-2
xorg-x11-drv-s3virge-1.8.6.5-1.2
xorg-x11-drv-dmc-1.0.0.5-1.2
xorg-x11-drv-acecad-1.0.0.5-1.2
xorg-x11-filesystem-7.0-1
xorg-x11-drv-keyboard-1.0.1.3-1.2
xorg-x11-drv-nv-1.0.1.5-3.1
xorg-x11-drv-fbdev-0.1.0.5-1.2
xorg-x11-drv-via-0.1.33.2-2
xorg-x11-drv-trident-1.0.1.2-1.2
xorg-x11-drv-magellan-1.0.0.5-1.2
xorg-x11-xkb-utils-1.0.1-1.2
xorg-x11-font-utils-1.0.1-3
xorg-x11-xtrans-devel-1.0.0-3.2
xorg-x11-proto-devel-7.0-6
xorg-x11-drv-evdev-1.0.0.5-1.2
xorg-x11-fonts-misc-7.0-3
xorg-x11-drv-elographics-1.0.0.5-1.2
xorg-x11-drv-digitaledge-1.0.1.3-1.2
xorg-x11-drv-sis-0.8.1.3-1.2
xorg-x11-drv-mutouch-1.0.0.5-1.2
xorg-x11-drv-citron-2.1.5-1
xorg-x11-drivers-7.0-2
xorg-x11-server-Xorg-1.0.1-9.fc5.1.1
xorg-x11-server-utils-1.0.1-1.2
xorg-x11-drv-void-1.0.0.5-1.2
xorg-x11-drv-sisusb-0.7.1.3-1.2
xorg-x11-drv-mouse-1.0.4-1
xorg-x11-drv-calcomp-1.0.0.5-1.2
xorg-x11-drv-fpit-1.0.0.5-1.2
xorg-x11-xdm-1.0.1-1.2
xorg-x11-fonts-truetype-7.0-3
xorg-x11-drv-mga-1.2.1.3-1.2
xorg-x11-drv-hyperpen-1.0.0.5-1.2
xorg-x11-drv-penmount-1.0.0.5-1.2

How reproducible:
every time

Steps to Reproduce:
1.  Boot system with vmlinuz-2.6.17-1.2139_FC5 kernel

Actual results:
USB Keyboard and mouse completely dead.

Expected results:
USB Keyboard and mouse continue to work as they did/do with previous kernel.

Additional info:
Boot of previous kernel shows:
Jun 28 15:09:38 ephiny kernel: usbcore: registered new driver libusual
Jun 28 15:09:38 ephiny kernel: usbcore: registered new driver hiddev
Jun 28 15:09:38 ephiny kernel: usbcore: registered new driver usbhid
Jun 28 15:09:38 ephiny kernel: drivers/usb/input/hid-core.c: v2.6:USB HID core
driver
Jun 28 15:09:38 ephiny kernel: mice: PS/2 mouse device common for all mice
[.....]
Jun 28 15:09:39 ephiny kernel: usb usb3: configuration #1 chosen from 1 choice
Jun 28 15:09:39 ephiny kernel: hub 3-0:1.0: USB hub found
Jun 28 15:09:39 ephiny kernel: hub 3-0:1.0: 2 ports detected
[.....]
Jun 28 15:09:39 ephiny kernel: usb 2-1: configuration #1 chosen from 1 choice
Jun 28 15:09:39 ephiny kernel: input: HID 0430:0005 as /class/input/input0
Jun 28 15:09:39 ephiny kernel: input: USB HID v1.00 Keyboard [HID 0430:0005] on
usb-0000:01:03.0-1
Jun 28 15:09:39 ephiny kernel: Non-volatile memory driver v1.2
Jun 28 15:09:39 ephiny kernel: usb 3-1: new low speed USB device using ohci_hcd
and address 2
Jun 28 15:09:39 ephiny kernel: usb 3-1: configuration #1 chosen from 1 choice
Jun 28 15:09:39 ephiny kernel: input: HID 0430:0100 as /class/input/input1
Jun 28 15:09:39 ephiny hpiod: 0.9.11 accepting connections at 50000...
Jun 28 15:09:39 ephiny kernel: input: USB HID v1.10 Mouse [HID 0430:0100] on
usb-0000:01:03.1-1
Jun 28 15:09:40 ephiny kernel: floppy0: no floppy controllers found

Boot of vmlinuz-2.6.17-1.2139_FC5 kernel shows:
(usbcore goes in)
[.....]
Jun 28 14:28:59 ephiny kernel: usbcore: registered new driver libusual
Jun 28 14:28:59 ephiny kernel: usbcore: registered new driver hiddev
Jun 28 14:28:59 ephiny kernel: usbcore: registered new driver usbhid
Jun 28 14:28:59 ephiny kernel: drivers/usb/input/hid-core.c: v2.6:USB HID core
driver
Jun 28 14:28:59 ephiny kernel: PNP: No PS/2 controller found. Probing ports
directly.
Jun 28 14:28:59 ephiny kernel: serio: i8042 AUX port at 0x60,0x64 irq 12
Jun 28 14:28:59 ephiny kernel: serio: i8042 KBD port at 0x60,0x64 irq 1
Jun 28 14:28:59 ephiny kernel: mice: PS/2 mouse device common for all mice
[Note: The Sun w2100z has NO PS/2 ports at all; only USB.]

There are no further USB related messages; no USB hub or HID devices detected.
/proc/bus/usb/ is completely empty.  Removing and replugging the devices (mouse,
keyboard elicts no response at all.  Restarting hidd with /etc/init.d/hidd
restart has no effect.