On Tue, 28 Oct 2008, Ralf Baechle wrote: > I see your point. If we dynamically allocate memory for exception handlers > at run-time and point ebase to it multi-kernel systems should till work > unless maybe the firmware gets disturbed by such a change of ebase. A run-time sanity check would do I suppose. I.e. that ebase points to somewhere within installed RAM and does not clash with the kernel in some way. We can mark that page as reserved in the memory map then; something we ought to regardless and which I gather we do not at the moment. Maciej