arrow key problem, kernel 2.2.19pre17

[Matt Brubeck <mbrubeck@hmc.edu>]

After upgrading to kernel-image-2.2.19pre17-pmac, I can no longer use my
right arrow key. It is not sending any key events at all, according to xev
and showkey. The keys worked fine under a 2.2.18 kernel I compiled myself
from kernel.org sources.

I have a slot-loading iMac with an Apple USB keyboard (the old mini
keyboards). I boot with "keyboard_sends_linux_keycodes=1". The proper
keycode for the right arrow should be 113.

Anyone else having similar problems? Any clues? I looked briefly through
the patches from 2.2.18 to 2.2.19pre17 but didn't find anything obvious.
If no one knows what's wrong then I'll do some more testing and take the
discussion to the linuxppc-dev mailing list.