I have found the problem: it's related to:
arch/x86/kernel/aperture_64.c
I use aperture_64.c from kernel 2.6.25-rc7 and remove only one line ( line 296: update_e820();) and recompile the kernel with debian/rules.
Now everything works fine.
But I have not enough time to produce a proper patch. Maybe another person ?
I have found the problem: it's related to:
arch/x86/ kernel/ aperture_ 64.c
I use aperture_64.c from kernel 2.6.25-rc7 and remove only one line ( line 296: update_e820();) and recompile the kernel with debian/rules.
Now everything works fine.
But I have not enough time to produce a proper patch. Maybe another person ?