ICH4 USB2 hangs

[Dan]

Plop hangs when trying to boot from an ICH4 (Sandisk USB2 flash drive). However, if USB2 is disabled in the BIOS, then it works.

It also works from an NEC USB2 controller.

[Dan]

Messages before hang:

Loading EHCI driver
Searching on hosts
Host 1
Host 2

[Elmar]

does it hang too when no usb device is connected?

regards
elmar

[Dan]

does it hang too when no usb device is connected?

No. And it works with other USB devices. It's hard to read the messages because they fly by so fast - is there a way to pause before booting?

[Dan]

Tried another PC, this one ICH5: same hang. (Works if USB2 disabled in BIOS).

Tried using "force usb 1.1" plop option: works.