I just installed fc6 however i am getting the following error messages in my logs and while booting up the machine.
did anybody see that or come across these errors before?
NOTE: my usb keyboard and mouse r working fine? don't if the error has to do with usb

Thanks in advance

Dec 4 08:12:02 localhost kernel: usb 1-1: device not accepting address 2, error -71
Dec 4 08:12:02 localhost kernel: usb 5-1: new high speed USB device using ehci_hcd and address 2
Dec 4 08:12:02 localhost kernel: usb 5-1: configuration #1 chosen from 1 choice
Dec 4 08:12:02 localhost kernel: hub 5-1:1.0: USB hub found
Dec 4 08:12:02 localhost kernel: hub 5-1:1.0: 4 ports detected
Dec 4 08:12:02 localhost kernel: usb 5-1.1: new low speed USB device using ehci_hcd and address 3
Dec 4 08:12:02 localhost kernel: usb 5-1.1: configuration #1 chosen from 1 choice
Dec 4 08:12:02 localhost kernel: input: Dell Dell USB Keyboard as /class/input/input0
Dec 4 08:12:02 localhost kernel: input: USB HID v1.10 Keyboard [Dell Dell USB Keyboard] on usb-0000:00:1d.7-1.1
Dec 4 08:12:02 localhost kernel: usb 5-1.2: new low speed USB device using ehci_hcd and address 4
Dec 4 08:12:02 localhost kernel: usb 5-1.2: configuration #1 chosen from 1 choice
Dec 4 08:12:02 localhost kernel: input: Dell Dell USB Mouse as /class/input/input1
Dec 4 08:12:02 localhost kernel: input: USB HID v1.10 Mouse [Dell Dell USB Mouse] on usb-0000:00:1d.7-1.2
Dec 4 08:12:02 localhost kernel: ata1: port is slow to respond, please be patient
Dec 4 08:12:02 localhost kernel: ata1: port failed to respond (30 secs)
Dec 4 08:12:02 localhost kernel: ata1: SRST failed (status 0xFF)
Dec 4 08:12:02 localhost kernel: ata1: SRST failed (err_mask=0x100)
Dec 4 08:12:02 localhost hcid[2049]: Bluetooth HCI daemon
Dec 4 08:12:02 localhost kernel: ata1: softreset failed, retrying in 5 secs
Dec 4 08:12:02 localhost kernel: ata1: SRST failed (status 0xFF)
Dec 4 08:12:02 localhost kernel: ata1: SRST failed (err_mask=0x100)
Dec 4 08:12:02 localhost kernel: ata1: softreset failed, retrying in 5 secs
Dec 4 08:12:02 localhost kernel: ata1: SRST failed (status 0xFF)
Dec 4 08:12:02 localhost kernel: ata1: SRST failed (err_mask=0x100)
Dec 4 08:12:02 localhost kernel: ata1: reset failed, giving up
Dec 4 08:12:02 localhost kernel: scsi1 : ata_piix
Dec 4 08:12:02 localhost kernel: ata2: port is slow to respond, please be patient
Dec 4 08:12:02 localhost kernel: ata2: port failed to respond (30 secs)
Dec 4 08:12:02 localhost kernel: ata2: SRST failed (status 0xFF)
Dec 4 08:12:02 localhost kernel: ata2: SRST failed (err_mask=0x100)
Dec 4 08:12:02 localhost kernel: ata2: softreset failed, retrying in 5 secs
Dec 4 08:12:02 localhost kernel: ata2: SRST failed (status 0xFF)
Dec 4 08:12:02 localhost kernel: ata2: SRST failed (err_mask=0x100)
Dec 4 08:12:02 localhost kernel: ata2: softreset failed, retrying in 5 secs
Dec 4 08:12:02 localhost kernel: ata2: SRST failed (status 0xFF)
Dec 4 08:12:02 localhost kernel: ata2: SRST failed (err_mask=0x100)
Dec 4 08:12:02 localhost kernel: ata2: reset failed, giving up

I have this exact same error. It wasn't present in my old A64 system which I used to install FC6 x86_64. But After I changed my motherboard to Asrock Dual VSTA and CPU to Intel e6300 conroe I received this error message.

Please tell me what is your motherboard and motherboard chipset. I can't help you but we might be able to isolate hardware/ software problem.

I had the some error on SLES10 SP2 (it is based on 2.6.16 kernel), to solve it, change sequence of kernel module loading in initrd,
for me below sequence worked:

modprobe "usbcore"
modprobe "ehci_hcd" (I had to swap places uhci with ehci)
modprobe "uhci_hcd"
modprobe "uhbhid" added for installation with USB keyboard
modprobe "usb-storage"

regards