On Tue, 02 Sep 2008 16:26:40 +0200, Jiri Slaby said:

OK, I'll annotate line-by-line.  This is a console from a boot of a kerne=
l
built with HID_COMPAT=3Dn (which works just fine).  I couldn't get a netc=
onsole
of a COMPAT=3Dy boot for other reasons, and it doesn't live long enough t=
o get a
dmesg.

Both kernels are OK here.
quoted text
> > =5B    1.665167=5D usb 1-8: New USB device found, idVendor=3D413c, id=
Product=3D0058
quoted text
> > =5B    1.678083=5D usb 1-8: New USB device strings: Mfr=3D0, Product=
=3D0, SerialNumber=3D0
quoted text
> > =5B    1.753101=5D usb 1-8.1: new low speed USB device using ehci_hcd=
 and address 5
quoted text
> > =5B    1.842008=5D usb 1-8.1: configuration =231 chosen from 1 choice=

quoted text
> > =5B    1.869343=5D usb 1-8.1: New USB device found, idVendor=3D045e, =
idProduct=3D0023
quoted text
> > =5B    1.882267=5D usb 1-8.1: New USB device strings: Mfr=3D1, Produc=
t=3D2, SerialNumber=3D0
quoted text
> > =5B    1.895189=5D usb 1-8.1: Product: Microsoft Trackball Optical=C2=
=AE
quoted text
> > =5B    1.908056=5D usb 1-8.1: Manufacturer: Microsoft

The next line would make it to the console in both cases.
quoted text
> > =5B    1.926685=5D input: Microsoft Microsoft Trackball Optical=C2=AE=
 as /devices/pci000:00/0000:00:1d.7/usb1/1-8/1-8.1/1-8.1:1.0/input/input1=


The following 3 lines don't go to console by default due to loglevel sett=
ing.
So I'm not sure exactly where it hangs. But it's somewhere in here.
quoted text
> > =5B    1.945217=5D generic-usb 0003:045E:0023.0001: input,hidraw0: US=
B HID v1.00 Mouse =5BMicrosoft Microsoft Trackball Optical=C2=AE=5D on us=
b-0000:00:1d.7-8.1/input0
quoted text
> > =5B    1.959193=5D usbcore: registered new interface driver usbhid
> > =5B    1.973037=5D usbhid: v2.6:USB HID core driver

This line *should* make it to the console, but doesn't. So the failure is=

before this point.
quoted text
> > =5B    1.987014=5D Advanced Linux Sound Architecture Driver Version 1=
.0.18rc1.

I'll go back and instrument it more heavily so there's more info availabl=
e.