On 2.6.12-rc5 modprobe usb-storage hangs forever - it is reproducible most of 
the times.

The last line in dmesg is -
[  155.995171] Initializing USB Mass Storage driver...

Also interesting is this line -
[   40.586298] ohci_hcd 0000:00:02.0: Unlink after no-IRQ?  Controller is 
probably using the wrong IRQ.

Above happens intermittently. 

dmesg output (out) and SysRQ+T attached.

Parag