[64studio-devel] patch-2.6.21-rc6-rt0 hangs on boot on amd64

[Free Ekanayaka]

Hi Lee,

I'm sorry to disturb you directly, but still don't know exactly to
whom bug reports about the rt patch should be filed. Please feel free
to point me to the right place (the kernel ml?).

I've built the 2.6.21-rc6 kernel release and it seems to work fine on
an amd64 HP Pavillon zv5000 laptop, using this config:

http://people.64studio.com/~free/config-2.6.21-rc6

However the system hangs on boot if I try to apply the 2.6.21-rc6-rt0
realtime patch, with this config:

http://people.64studio.com/~free/config-2.6.21-rc6-rt0

(diffing the two configs shows a lot of differences, but as far as I
can tell what I did was simply to run makeconfig from the first config
after having applied the patch).

The systems hangs when the on of the script contained in the standard
Debian ramfs image tries to launch udevsettle. 

The script is /scripts/init-premount/udev, inside the ramfs image, you
find a copy here:

http://people.64studio.com/~free/udev

If I try to boot the patch kernel using qemu, than everything works,
so it might also be a problem specific to this hardware.

Hints?

Ciao!

Free