Comment 93 for bug 61235

sudo modprobe -r ehci_hcd also worked for me, I am using ubuntu 7.10 with a Asus M2V motherboard.

My dmesg gives:
[ 5638.148000] usb 5-1: new high speed USB device using ehci_hcd and address 2
[ 5643.148000] ehci_hcd 0000:00:10.4: Unlink after no-IRQ? Controller is probably using the wrong IRQ.
[ 5653.692000] usb 5-1: device not accepting address 2, error -110
[ 5653.804000] usb 5-1: new high speed USB device using ehci_hcd and address 3
[ 5669.348000] usb 5-1: device not accepting address 3, error -110
[ 5669.460000] usb 5-1: new high speed USB device using ehci_hcd and address 4
[ 5679.884000] usb 5-1: device not accepting address 4, error -110
[ 5679.996000] usb 5-1: new high speed USB device using ehci_hcd and address 5
[ 5690.420000] usb 5-1: device not accepting address 5, error -110
[ 5711.732000] usb 5-1: new high speed USB device using ehci_hcd and address 6

I am using the usual 2.6.22-14-generic #1 SMP linux kernel provided with Ubuntu 7.10.

Good luck with this bug!