Bug#351909: 2.6.14 boots, but not 2.6.15

[Hans Ekbrand <hans@sociologi.cjb.net>]

Package: linux-image-2.6-powerpc-miboot
Severity: grave

I tried the following images on a performa 5400. This box normally
runs sid and has no problem with any 2.6.15-kernel when booted by
quik.

So the problem is specific to miboot and 2.6.15.

http://people.debian.org/~luther/d-i/sid/images/2005-12-28/powerpc/floppy/boot.img
2.6.14
Works!

http://people.debian.org/~luther/d-i/sid/images/2005-01-10/powerpc/floppy/boot.img
2.6.14
Works!

http://people.debian.org/~luther/d-i/sid/images/2006-01-16/powerpc/floppy/boot.img
2.6.15
Hangs also, now with

ide0: Found Apple Ohare ATA controller, bus ID 0, irq13 
ADB keyboard at 2, handler set to 3 
Serial port locked ON by debugger!
ABD HID on ID 3 not yet registered

http://people.debian.org/~luther/d-i/sid/images/2006-01-25/powerpc/floppy/boot.img
2.6.15
This kernel hangs with

ide0: Found Apple Ohare ATA controller, bus ID 0, irq13 
ADB keyboard at 2, handler set to 3 
Serial port locked ON by debugger!

http://people.debian.org/~luther/d-i/sid/images/2006-02-07/powerpc/floppy/boot.img 
2.6.15
This kernel hangs with same as the 2006-01-25

So to sum up: 2.6.14 works, but 2.6.15 does not.

Kind regards,
Hans Ekbrand