working gdb for recent joyride

[Daniel Drake]

gdb isn't working for most apps on joyride. It interrupts the app (and
refuses to resume) with the following error:

	Couldn't read floating-point and SSE registers

This is because of what seems to be a kernel bug introduced in 2.6.25:
http://lkml.org/lkml/2008/6/30/7

I cooked up a quick gdb rpm to work around this, which I'll share in
case it is useful to others:

http://dev.laptop.org/~dsd/gdb-6.8-10.fc9.i386.rpm
(I just made it treat ENODEV the same way that it treats EIO for that
codepath)

Daniel