Re: exception tables in 2.5.55

Linus Torvalds
2003-01-13T03:20:45Z

On Mon, 13 Jan 2003, Greg Ungerer wrote:
>
> Tested and working on m68knommu architecture.

Why does exceptions have anything to do with no-mmu?

There are exceptions that have nothing to do with MMU's, and a no-mmu
architecture should still support them. On x86, we have a number of such
exceptions, for example general protection stuff for wrong values for
special registers etc.

In other words, not applied. Page table exceptions are just the most
_common_ exception type, but there's absolutely nothing in the mechanism
that has anything at all to do with MMU-less.

If some archtiecture happens to have an empty exception table, that's
fine.

Linus